ライフサイエンスコーパス: isotope dilution

1 to nitrate during the analysis (double spike isotope dilution).

2 ring hyperinsulinemic-euglycemic clamps with isotope dilution.

3 using respirometry, and body composition by isotope dilution.

4 erinsulinemic-euglycemic clamp combined with isotope dilution.

5 ere quantified in clinical samples using 13C isotope dilution.

6 d analysis of Pa in silicate rock samples by isotope dilution.

7 at bases the calibration on the principle of isotope dilution.

8 -tandem mass spectrometry, and quantified by isotope dilution.

9 dards, and quantification was carried out by isotope dilution.

10 procedural blank from the result obtained by isotope dilution.

11 med by an immunoaffinity purification stable isotope dilution ([(15)N(5)]-8-oxo-dGuo) liquid chromato

12 s validated by immunoaffinity capture stable isotope dilution ([(15)N(5)]8-oxo-dGuo) liquid chromatog

13 HPLC/(71)Ga species-unspecific isotope dilution ((71)Ga-SUID) ICP-MS was subsequently d

14 les per kilogram fresh weight as measured by isotope dilution, accounting for 19% of the ester indole

15 brid of the method of standard additions and isotope dilution allowing correction for nonlinear trend

16 high-purity germanium gamma spectrometry and isotope dilution alpha spectrometry to quantitate NORM.

17 A new procedure, applying stable isotope dilution analysis (SIDA) and dynamic headspace-t

18 -amino acids and the development of a stable isotope dilution analysis (SIDA) for their simultaneous

19 The method constitutes stable isotope dilution analysis (SIDA) in conjunction with hea

20 was used for their quantitation using stable isotope dilution analysis (SIDA) or standard addition (S

21 s determined in ozonated drinking waters via isotope dilution analysis are within 10% of the concentr

22 evaluation as a standard in species-specific isotope dilution analysis by HPLC coupled to inductively

23 d for use as a calibrant in species-specific isotope dilution analysis by HPLC coupled to inductively

24 lied the MIC methodology in combination with isotope dilution analysis for sulfur determinations, rep

25 ethodology based on capLC-ICP-QQQ and online isotope dilution analysis for the absolute and sensitive

26 ith (13)C, D2-formaldehyde, and developed an isotope dilution analysis method to quantitate these org

27 ow-resolution MS method for the quantitative isotope dilution analysis of 39 mono- to heptabrominated

28 timized ECNI source conditions, quantitative isotope dilution analysis of 39 PBDEs was conducted usin

29 Isotope dilution analysis produces a relative standard d

30 Isotope dilution analysis showed that it occurred at a c

31 (15) N isotope dilution analysis showed that maize and wheat pl

32 determination of free IAA in plant tissue by isotope dilution analysis using gas chromatography-mass

33 een determined using a new strategy based on isotope dilution analysis.

34 composite samples was determined by means of isotope dilution analysis.

35 oxidation products) in human urine by stable isotope dilution analysis.

36 ge, for use as internal standards for stable isotope dilution analysis.

37 0.1 mumol VA/g liver with the use of retinol isotope dilution and <0.7 mumol/L for SR concentrations.

38 The isotope dilution and body density models provide estimat

39 The method is based on dual isotope dilution and cavity ring-down spectroscopy (DID-

40 rmination of proteins by nonspecies specific isotope dilution and external calibration high-performan

41 Urinary DES was measured by isotope dilution and HPLC.

42 into the ARC or the PVN, in combination with isotope dilution and hyperinsulinemic-euglycemic clamp t

43 simultaneous targeted metabolic profiling by isotope dilution and non-targeted fingerprinting is prop

44 ESI-LC-MS/MS method with isotope dilution and SPE based on cation-exchange was de

45 ized to generate novel internal standard for isotope dilution and to extend the quantitative applicat

46 titative magnetic resonance, whole-body MRI, isotope dilution, and nitrogen and fluid balances.

47 mination of isotope effects, quantitation by isotope dilution, and quantification of isotope tracers

48 purification scheme, combined with a stable isotope dilution approach, was used to overcome problems

49 rnal standards, aligned with the traditional isotope dilution approach.

50 While isotope-dilution approaches using selected reaction moni

51 A stable isotope dilution assay (SIDA) with d7-gamma-decalactone

52 d wines for all grape varieties using Stable Isotope Dilution Assay (SIDA).

53 ifferent compounds were quantified by stable isotope dilution assay (SIDA): beta-damascenone, beta-io

54 The procedure is based on stable isotope dilution assay followed by liquid chromatography

55 We now report a simple, reproducible isotope dilution assay which detects PtdIns(3,4,5)P3 at

56 extract dilution analysis (AEDA) and stable isotope dilution assays (SIDA).

57 Isotope dilution assays use stable isotopes as tracers o

58 These included dose-response tests and isotope dilution assays.

59 We applied isotope-dilution automated online two-dimensional ultrap

60 12% using external calibration and 4% using isotope dilution calibration].

61 or accuracy and precision through the use of isotope dilution, calibrator bracketing, and gravimetric

62 portant metrological outcome: blank-matching isotope dilution can be considered a primary method of a

63 ere optimized to exclude the major source of isotope dilution caused by the previously unknown breakd

64 An isotope dilution cold vapor inductively coupled plasma m

65 A method based on isotope dilution cold-vapor inductively coupled plasma m

66 (238)Pu amount ratio of all samples applying isotope dilution combined with chromatographic separatio

67 cedure (RMP) for total T3 in serum involving isotope dilution coupled with liquid chromatography-tand

68 A candidate reference method involving isotope dilution coupled with liquid chromatography/mass

69 ement procedure for 19-NA in urine involving isotope dilution coupled with liquid chromatography/tand

70 re for progesterone in human serum involving isotope dilution coupled with liquid chromatography/tand

71 t procedure for estradiol in serum involving isotope-dilution coupled with liquid chromatography-tand

72 measures of total body water by using stable isotope dilution (deuterium oxide) combined with body-we

73 d in the extracts with liquid chromatography/isotope-dilution electrospray-ionization mass spectromet

74 sides are purified by HPLC and quantified by isotope-dilution, electrospray ionization LC/MS-MS.

75 A simple and robust method using stable isotope dilution-electrospray ionization-tandem mass spe

76 Quantification was achieved by stable isotope dilution employing penta-deuterated (PG-Gs) or t

77 An isotope dilution experiment further indicates that these

78 Isotope dilution experiments reveal that each C-terminal

79 Furthermore, isotope dilution experiments suggest that the pathways t

80 al NMR strategy for metabolic flux analysis, isotope dilution experiments, and other methods that rel

81 fumarate in isolated potato mitochondria by isotope dilution experiments.

82 ion to evaluate its use for species-specific isotope dilution experiments.

83 ere assigned to the h16 octamer via detailed isotope dilution experiments.

84 concentration and isotopic data obtained by isotope dilution for a suite of newly available Chinese

85 nt proportions and by applying principles of isotope dilution for data analysis (GS-IDA).

86 tafluorobutyryl derivative and quantified by isotope dilution gas chromatography negative-ion chemica

87 The analysis was performed using isotope dilution gas chromatography tandem mass spectrom

88 NPRO was quantified by isotope dilution gas chromatography-mass spectrometry (G

89 Stable isotope dilution gas chromatography-mass spectrometry me

90 Sterol quantification was carried out by isotope dilution gas chromatography-mass spectrometry.

91 ouracil levels in human aortic tissue, using isotope dilution gas chromatography-mass spectrometry.

92 sphalt fume by electron impact ionization of isotope dilution gas chromatography/ mass spectrometry);

93 A new isotope dilution gas chromatography/chemical ionization/

94 The method was validated by species-specific isotope dilution gas chromatography/mass spectrometry (G

95 3-nitrotyrosine levels of tissues by stable isotope dilution gas chromatography/mass spectrometry sh

96 ces nitrating intermediates in vivo, we used isotope dilution gas chromatography/mass spectrometry to

97 drolysates of reduced lipid extracts through isotope dilution gas chromatography/mass spectrometry.

98 Previously, we developed a stable isotope dilution gas chromatography/negative chemical io

99 We have developed and validated an isotope-dilution gas chromatography-coupled mass spectro

100 Urinary isoflavonoids were measured by isotope-dilution gas chromatography-mass spectrometry.

101 erodiol and enterolactone) contents by using isotope-dilution gas chromatography-mass spectrometry.

102 ations are physiologically relevant, we used isotope-dilution gas chromatography/mass spectrometry to

103 ated solid-phase extraction (SPE) coupled to isotope dilution-gas chromatography/mass spectrometry (G

104 metry), measurement of skinfold thicknesses, isotope dilution (H(2)(18)O), and bioelectrical impedanc

105 y (DXA), underwater weighing (densitometry), isotope dilution (H(2)18O), bioelectrical impedance, ski

106 Iron excretion measured by isotope dilution has been a primary basis for the factor

107 We used isotope dilution/hepatic vein catheterization techniques

108 wed by rapid quenching, acid hydrolysis, and isotope dilution high pressure liquid chromatography-ele

109 d-phase extraction (SPE) cleanup followed by isotope dilution high-performance liquid chromatography

110 In the present work, an isotope dilution high-performance liquid chromatography-

111 -phase extraction (SPE) method, coupled with isotope dilution high-performance liquid chromatography/

112 We have developed an isotope dilution high-performance liquid chromatography/

113 id-liquid extraction, and gas chromatography/isotope dilution high-resolution mass spectrometry after

114 We used gas chromatography isotope dilution high-resolution mass spectrometry to me

115 analytes was performed by gas chromatography-isotope dilution high-resolution mass spectrometry.

116 Here, we present a sensitive and selective isotope-dilution high performance liquid chromatography-

117 xtraction (SPE) coupled with on-line SPE and isotope-dilution high-performance liquid chromatography-

118 mples were analyzed using gas chromatography isotope-dilution high-resolution mass spectrometry.

119 etics of POB group transfer was monitored by isotope dilution HPLC-ESI(+)-MS/MS analysis of O(6)-POB-

120 Pt and Pd concentrations were measured using isotope dilution ICP-Q-MS, while Rh was measured directl

121 It was based on isotope dilution (ID) in the liquid phase with the (202)

122 ixes of plant and animal origin for use with isotope dilution (ID) inductively coupled plasma mass sp

123 ion (Top 3) and absolute quantification with isotope dilution (ID).

124 AHF (isotope dilution) increased by 30% (P < 0.01, n = 8), fl

125 hic column and quantified by the post-column isotope dilution inductively coupled plasma mass spectro

126 raphy, whole-body norepinephrine kinetics by isotope dilution, insulin sensitivity by euglycemic-hype

127 for compensation of the procedural blank in isotope dilution is presented.

128 hods other than serum retinol alone, such as isotope dilution, is required to accurately assess VA st

129 The validated isotope dilution LC-MS/MS method was used to measure BCM

130 A stable isotope dilution LC-MS/MS multi-mycotoxin method was dev

131 o contain caramel colorants were analyzed by isotope dilution LC-MS/MS to determine the contamination

132 Using stable isotope dilution LC/ESI/MS/MS, we show that while guanin

133 ould be possible to develop the first stable isotope dilution LC/MS assay for a platinum drug in huma

134 tion of (24R),25(OH)2D3 in human serum using isotope-dilution LC-MS/MS.

135 Selected ion-monitoring isotope-dilution LC/MS (electrospray) has been developed

136 This method uses isotope dilution liquid chromatography coupled to a tand

137 w-weighted daily composites were analyzed by isotope dilution liquid chromatography tandem mass spect

138 easure TMAO in biological matrices by stable isotope dilution liquid chromatography tandem mass spect

139 titation of peptides by non-species-specific isotope dilution liquid chromatography-inductively coupl

140 The accuracy and specificity of stable isotope dilution liquid chromatography-mass spectrometry

141 We have developed a stable isotope dilution liquid chromatography-multiple reaction

142 A recently developed stable isotope dilution liquid chromatography-multiple reaction

143 The method is based upon the use of stable isotope dilution liquid chromatography/atmospheric press

144 Sensitive and specific isotope dilution liquid chromatography/mass spectrometry

145 ic and sensitive methodology based on stable isotope dilution liquid chromatography/tandem mass spect

146 um SAM and SAH were measured by using stable-isotope-dilution liquid chromatography-mass spectrometry

147 Using a novel isotope-dilution liquid chromatography-mass spectrometry

148 tandard to develop an accurate and sensitive isotope-dilution liquid chromatography-tandem mass spect

149 e roundtable reviewed the possible use of an isotope-dilution liquid chromatography-tandem mass spect

150 erved tryptic peptides were quantified using isotope-dilution liquid chromatography-tandem mass spect

151 sensitivity of selected ion monitoring mode isotope-dilution liquid chromatography/mass spectrometry

152 and quantification procedure based on stable isotope-dilution liquid chromatography/tandem mass spect

153 We have developed a stable-isotope dilution, liquid chromatography-mass spectrometr

154 A modified isotope dilution mass spectrometric (IDMS) method treati

155 s injected with LTB4 was determined using an isotope dilution mass spectrometric assay before and aft

156 as instructions on how to use them in stable isotope dilution mass spectrometric-based analyses.

157 as chromatography inductively coupled plasma isotope dilution mass spectrometry (GC-ICP-IDMS) after d

158 quired in the traditional gas chromatography-isotope dilution mass spectrometry (GC-IDMS) reference m

159 iquid chromatography, and gas chromatography/isotope dilution mass spectrometry (GC/IDMS) methods are

160 An immunocapture isotope dilution mass spectrometry (IC-IDMS) method was

161 ed a formulation for the detection limit for isotope dilution mass spectrometry (IDMS) after a thorou

162 onding samples; the latter was determined by isotope dilution mass spectrometry (IDMS) after decompos

163 The method of quantitation was based on isotope dilution mass spectrometry (IDMS) analysis of th

164 We have developed an isotope dilution mass spectrometry (IDMS) method to quan

165 y quantification using double exact matching isotope dilution mass spectrometry (IDMS) of the peptide

166 A double spike isotope dilution mass spectrometry (IDMS) procedure was

167 romatography (LC) based on postcolumn carbon isotope dilution mass spectrometry (IDMS) was developed.

168 etermination of creatinine in human serum by isotope dilution mass spectrometry (IDMS), because corre

169 as verified by independent measurement using isotope dilution mass spectrometry (IDMS).

170 performance liquid chromatography (UPLC) and isotope dilution mass spectrometry (IDMS).

171 rotein solutions using double exact matching isotope dilution mass spectrometry (IDMS).

172 t application of (37)Cl-labeled compounds to isotope dilution mass spectrometry (IDMS).

173 the analyte was quantified by single-spiking isotope dilution mass spectrometry (IDMS).

174 at the protein level, tryptic digestion, and isotope dilution mass spectrometry (IDMS).

175 iquid chromatography/electrospray ionization-isotope dilution mass spectrometry (LC/ESI-IDMS).

176 Stable isotope dilution mass spectrometry (MS) represents the g

177 ) in whole blood by triple-spiking speciated isotope dilution mass spectrometry (SIDMS) using headspa

178 biological samples using molecular speciated isotope dilution mass spectrometry (SIDMS).

179 based on the use of species-specific double isotope dilution mass spectrometry (SSIDA) in combinatio

180 Isotope dilution mass spectrometry and standard addition

181 tiple reaction monitoring (MRM) coupled with isotope dilution mass spectrometry can quantify candidat

182 gic use of enzymatic digestion combined with isotope dilution mass spectrometry has been increasingly

183 Here, Re is determined by isotope dilution mass spectrometry in sediments underlyi

184 We report here an isobaric-tagged isotope dilution mass spectrometry method for AAA that p

185 Protein quantification using stable isotope dilution mass spectrometry requires the quantifi

186 ooled-injection (CIS) gas chromatography and isotope dilution mass spectrometry to analyze 5-hydroxy-

187 lls was analyzed using liquid chromatography/isotope dilution mass spectrometry to measure the biolog

188 uantification of a peptide by exact matching isotope dilution mass spectrometry where the total hydro

189 Absolute quantification was performed using isotope dilution mass spectrometry with a linear ion tra

190 Using gas chromatography/isotope dilution mass spectrometry, we have detected ind

191 N-nitrosamines in samples was quantified by isotope dilution mass spectrometry.

192 mple preparation steps by applying speciated isotope dilution mass spectrometry.

193 nthesized and used as internal standards for isotope dilution mass spectrometry.

194 in serum has been developed utilizing stable isotope dilution mass spectrometry.

195 aged DNA substrates using gas chromatography/isotope dilution mass spectrometry.

196 licon material is central; it is measured by isotope dilution mass spectrometry.

197 (4) determining the elements of interest by isotope dilution mass spectrometry.

198 l tryptic digestion, peptide separation, and isotope dilution mass spectrometry.

199 A, using the technique of gas chromatography/isotope-dilution mass spectrometry (GC/IDMS).

200 E. coli Nth protein using gas chromatography/isotope-dilution mass spectrometry and DNA samples, whic

201 ive DNA base damage using gas chromatography/isotope-dilution mass spectrometry and DNA substrates, w

202 as accomplished using a combination of three isotope-dilution mass spectrometry approaches, with meas

203 ent and certification process included three isotope-dilution mass spectrometry approaches, with meas

204 under N2O and analyzed by gas chromatography/isotope-dilution mass spectrometry, that S3 protein effi

205 els were calibrated to an assay traceable to isotope-dilution mass spectrometry.

206 e, using the technique of gas chromatography/isotope-dilution mass spectrometry.

207 NA was investigated using gas chromatography/isotope-dilution mass spectrometry.

208 A), measurement of total body water (TBW) by isotope dilution, measurement of total body potassium, a

209 , the accessible fraction (E) derived by the isotope dilution method (IDM) ranged from 0.28 to 0.89 a

210 IAA was measured by an isotope dilution method as the pentaflurobenzyl ester.

211 A double-spiking isotope dilution method capable of correcting and quanti

212 The nonlinear isotope dilution method could, in principle, be applied

213 a new specific, sensitive, and rapid stable isotope dilution method for the simultaneous detection o

214 mass spectrometry (SPE-UPLC-MS/MS) using the isotope dilution method in the colostrums of 21 women wh

215 nties in blank contamination; therefore, the isotope dilution method should be used with caution when

216 assayed by LC-MS/MS under MRM condition and isotope dilution method, using d(2)-labelled internal st

217 tandem mass spectrometry (LC-MS/MS) with the isotope dilution method, we assessed quantitatively the

218 The assay involves the use of the stable isotope dilution method.

219 easures obtained by the gold standard stable isotope dilution method.

220 P using two methods, the modern-dead and the isotope dilution method.

221 Tissue AEA was quantified using an isotope-dilution method and UPLC-ESI-MS/MS giving intra-

222 d to be as sensitive and quantitative as the isotope-dilution method for measuring blood-retinal barr

223 can be adapted as a safe alternative to the isotope-dilution method for quantitating blood-retinal b

224 loped an LC-MS/MS/MS coupled with the stable isotope-dilution method for the sensitive and accurate q

225 Standard addition and isotope dilution methods were used for quantifications i

226 cated methodologies, including use of stable-isotope dilution methods, now allows for an accurate det

227 constituents were quantified using standard isotope dilution methods.

228 dy (40)K counting) to total body water (TBW; isotope dilution) methods (ECW(TBK-TBW)) in an ethnicall

229 An isotope dilution model for partitioning leucine uptake b

230 An isotope dilution model for partitioning phenylalanine an

231 el, the Wells et al 4-compartment model, the isotope dilution model, dual-energy X-ray absorptiometry

232 gy were found to be comparable with standard isotope dilution MRM MS.

233 urement of 8-OH-Gua in calf thymus DNA by GC/isotope-dilution MS (GC/IDMS) using these two different

234 s an internal standard for quantification by isotope-dilution MS (IDMS).

235 Gas chromatography/isotope-dilution MS with selected-ion monitoring (GC/IDM

236 ght mass spectrometry (MS) and quantified by isotope dilution-MS.

237 yzed by negative ion electrospray ionization-isotope dilution-MS/MS using a multiple reaction monitor

238 of peptides coupled with analysis by stable isotope dilution multiple reaction mass spectrometry has

239 with the use of liquid-chromatography-stable-isotope dilution-multiple-reaction monitoring-mass spect

240 (3)-ethylthymidine), and O(4)-edT adducts by isotope dilution nanoflow liquid chromatography-nanospra

241 rapid identification and quantification (by isotope dilution) of carotenoids present in crude extrac

242 We developed a method using isotope dilution on-line solid-phase extraction (SPE) co

243 and milk compared favorably to conventional isotope-dilution one-dimensional gas chromatography-high

244 aration of BChE by antibody conjugated bead, isotope-dilution, pepsin digestion, followed by UHPLC se

245 ntification being performed according to the isotope dilution principle.

246 is work describes the first multiple spiking isotope dilution procedure for organic compounds using (

247 beled volatiles were quantified by a reverse isotope dilution procedure.

248 measuring the isotope ratios modified by the isotope dilution process.

249 mall sample volume (100 microL of serum) and isotope dilution quantification make this method suitabl

250 equivalent to conventional HPLC-ID/MS/MS for isotope dilution quantification of peptides and proteins

251 uterated analogues to a sediment sample, the isotope dilution reached a steady state within 24 h of m

252 Since isotope dilution relies inherently on the linearity of r

253 -based method combined with "reverse" online isotope dilution ("reverse" online ID) for metabolite qu

254 r retinol stores determined by using retinol isotope dilution (RID).

255 The four spiked elements, determined by isotope dilution, served as internal standards for the r

256 ctrometry (MS/MS) with the concept of stable isotope dilution (SID) for metabolite quantitation.

257 oring mass spectrometry (MRM-MS) with stable isotope dilution (SID) is increasingly becoming a widely

258 -dC and dG-gx-dA cross-links based on stable isotope dilution (SID) nanoflow liquid chromatography na

259 g synthetic heavy peptides coupled to stable isotope dilution-SRM (SID-SRM).

260 The isotope dilution standard calibration curve resulted in

261 For Cu quantification, two isotope dilution strategies have been developed.

262 Using an isotope dilution strategy, we have shown that nitrogen f

263 Urine isotope dilution studies identified citrulline and choli

264 Radiolabeling and isotope dilution studies now confirm that daidzein is no

265 overies of (13)C(12)-labeled PBDE and PBDD/F isotope dilution surrogates about 18% and 25%, respectiv

266 manuscript reports a liquid chromatographic-isotope dilution tandem mass spectrometric method for th

267 ional high-performance liquid chromatography-isotope dilution tandem mass spectrometry (HPLC-ID/MS/MS

268 -min ultra performance liquid chromatography-isotope dilution tandem mass spectrometry (UPLC-ID/MS/MS

269 llary liquid chromatography nanoelectrospray isotope dilution tandem mass spectrometry method for qua

270 ction-high performance liquid chromatography-isotope dilution tandem mass spectrometry to measure uri

271 ion, high-performance liquid chromatography, isotope-dilution tandem mass spectrometry.

272 ction-high performance liquid chromatography-isotope dilution-tandem mass spectrometry.

273 d via high performance liquid chromatography-isotope dilution-tandem mass spectrometry.

274 as chromatography/mass spectrometry with the isotope dilution technique (GC/IDMS) was also employed t

275 id chromatography/mass spectrometry with the isotope dilution technique (LC/IDMS).

276 ically digested, and levels were measured by isotope dilution technique using liquid chromatography/m

277 rometry (LC-MS/MS) method, together with the isotope dilution technique, for assessing the repair of

278 amino acid concentration using the enzymatic isotope dilution technique.

279 ovenous concentration difference with stable isotope dilution technique.

280 Gold-standard isotope dilution techniques are laborious and costly; th

281 inary PGE-M excretion in humans using stable isotope dilution techniques employing liquid chromatogra

282 ighly accurate because it is based on stable isotope dilution techniques.

283 d for use of suitable internal standards and isotope dilution techniques.

284 Stable isotopes of vitamin A and isotope-dilution techniques were used recently to evalua

285 The paired (13)C-retinol isotope dilution test, a sensitive biomarker for VA stat

286 ntake and liver reserves estimated by stable-isotope dilution testing.

287 The isotope-dilution tests confirmed that total-body vitamin

288 nsive two-dimensional gas chromatography and isotope dilution time-of-flight mass spectrometry (GCxGC

289 itrogen fixation was estimated through (15)N isotope dilution to be 65% nitrogen derived from air (Nd

290 In this study, we applied the principle of isotope dilution to quantify bioaccessibility of legacy

291 Dissolved silicate was determined by double isotope dilution using a (29)Si spike, whereas one point

292 Stable isotope dilution using creatinine-d3 as internal standar

293 tubes with isopropyl alcohol extraction and isotope dilution using liquid chromatography coupled wit

294 ification of 1,4-dioxane was accomplished by isotope dilution using mass-labeled 1,4-dioxane-d8 as in

295 ry coupled with the calibration technique of isotope dilution were able to accurately quantify most c

296 chromatography-mass spectrometry and reverse isotope dilution were used to identify intermediates in

297 d of multiple reaction monitoring and stable isotope dilution with an (18)O-labeled reference peptide

298 absolute quantification was accomplished by isotope dilution with labeled AQUA peptides.

299 n enzymatic DNA hydrolysates was achieved by isotope dilution with the corresponding 15N-labeled inte

300 Total copper and 65Cu were determined by isotope dilution with thermal-ionization mass spectromet