ライフサイエンスコーパス: peak area

1 mple concentration based on total counts or "peak area".

2 t reproducibility of peak migration time and peak area.

3 and was markedly superior in preservation of peak area.

4 continuous segmented stream with 5.1% RSD in peak area.

5 less than 3% deviation in retention time and peak area.

6 tion (RSD)) of 0.6% for peak height 0.7% for peak area.

7 2.5:1, which accounted for 94% of the total peak area.

8 lly and quantitated by direct integration of peak area.

9 ural blanks to estimate a minimum detectable peak area.

10 s and corrected (migration times normalised) peak areas.

11 etween diluted concentrations and integrated peak areas.

12 mpounds with the highest relative percentage peak areas.

13 ted from T2-corrected fat and water spectral peak areas.

14 tion with similar RSD for migration time and peak areas.

15 onse in terms of the arithmetic means of the peak areas.

16 ata but also improved the retention time and peak area 3% and 6%, respectively.

17 s 148) and around five times the size of the peak area (33.55 x 10(6) vs 6.47 x 10(6)).

18 ate molecule level exhibit quantized product peak areas; a histogram of the normalized peak areas rev

19 and (ii) for a given sample set, integrates peak areas across all samples even where AMDIS deconvolu

20 d be performed sequentially with 5.8% RSD in peak area and 53,500 theoretical plates.

21 inear calibration curve was obtained between peak area and analyte concentration between 0.1 and 10 m

22 APPI generated higher peak area and lower baseline noise, and therefore much h

23 dividing MMC peak area by internal standard peak area and plotting the area ratio against the calibr

24 e reciprocal derivative chronopotentiometric peak area and potential are examined in different solven

25 Quantification of the relationship between peak area and sample loading was established over the ra

26 If the peak area and shape do not change with changing distance

27 n of the Au NP coverage and NP size from the peak area and the peak potential, respectively.

28 ta-carotene (r(2)=0.999014; n=6) between the peak areas and concentration of beta-carotene 20-200mug/

29 id exudates similarly demonstrated increased peak areas and enabled the detection of proteins which w

30 Data corresponding to polyphenolic peak areas and HPLC-UV chromatographic fingerprints were

31 also found that while ratio estimates using peak areas and intensities are usually more accurate, th

32 nting, along with normalized chromatographic peak areas and intensities, were used to analyze the com

33 workflows by comparison with chromatographic peak areas and intensities.

34 From peak areas and isomerization time, the forward and backw

35 nd analysis of variance (ANOVA) tests of the peak areas and migration times are used to evaluate N-gl

36 Reproducibility studies of VOC peak areas and peak heights are also carried out showing

37 ctral counts with normalized chromatographic peak areas and peak intensities from deconvoluted extrac

38 age are discussed and the reproducibility of peak areas and retention time are investigated.

39 Replicate modulated peak areas and retention times were reproducible to <5%.

40 areas, ratios of standard/internal standard peak area, and concentrations.

41 ers such as spectral counts, chromatographic peak area, and ion intensity when using spiked-in protei

42 mbination of RAIRS intensities, hydrogen TPD peak areas, and Auger electron spectroscopy, quantitativ

43 Retention times, peak areas, and resolution are comparable for a 10 mL an

44 )H chemical shift variations, changes in NMR peak areas, and size of the formed complex.

45 ision of migration time (<1% RSD, n = 3) and peak area ( approximately 4% RSD, n = 3) were achieved.

46 ulation time, the standard deviation for the peak areas are 0.15% for the primary and 0.78% for the s

47 The peak areas are found from the strategic points using a c

48 Third, analyte peak areas are most significantly impacted as their conc

49 The Raman peak area as a function of incident angle was measured u

50 and intercept of a plot of the HPLC elution peak area as a function of the amount of standard cardio

51 Using the atomic fluorescence peak area as the analytical measure and a background cor

52 monstrated (all P<0.05 or greater using HPLC peak area as units).

53 conditions were optimised using the relative peak areas as index.

54 and internal standard anion peak heights or peak areas, as well as the use of a unique drift-correct

55 ered protein secondary structures decreasing peak areas associated with turns, bends, alpha-helices,

56 out using internal standards, and integrated peak areas based on total ion current can be used for st

57 The magnitude change of the peak area between the two distances along with the overa

58 ge, 0.3-0.5 mg/mL) generated by dividing MMC peak area by internal standard peak area and plotting th

59 Raman peaks and AL/AS value (Ratio of total peak area corresponding to occupancies of guest molecule

60 Finally, it was shown that peak areas could be increased in scanning MAGF by reduci

61 %, mass accuracy values of <2 ppm error, and peak area CV of <13%, with the majority of that error co

62 fabricated results by manipulating LC-MS/MS peak area data to smooth kinetics and/or alter statistic

63 The peak areas detected from HPLC separations are reproducib

64 While peak areas differed markedly with lower signal for amino

65 80.9%, 86.5%, 51.2%, 90.1% and 6.1% of total peak area for Dwarf Cavendish, Prata, Ouro, Maca and Pla

66 Changes in peak area for monomer and aggregate species were used to

67 0,000 psi (2070 bar), the reproducibility in peak area for the amounts injected was approximately 1.5

68 ents, which comprise 98.8-99.5% of the total peak area for the five orange species.

69 e supercoiled form, the normalized corrected peak area for the supercoiled form correlates with the p

70 sing, the relative standard deviation of the peak areas for 15 injections was 1.6%.

71 It automatically integrates peak areas for all isotopologues and outputs extracted i

72 The use of ratios of MRM transition peak areas for corresponding peptides is proposed for re

73 d they were characterised by higher averaged peak areas for esters, alcohols, and some furans.

74 The absolute peak areas for I and II in different plasmas were calcul

75 ieties were characterised by higher averaged peak areas for terpenes, pyrazines and straight-chained

76 GA selected 11 and 15 chromatographic peak areas, for bitterness and grain taste, respectively

77 e halide concentration and the corresponding peak area from about 10(-5) to 0.1 M for bromide and iod

78 inear regression line with the corresponding peak area from the linear regression line for clean (sol

79 the ratio of reconstructed ion chromatogram peak areas from characteristic quantitation ion and conf

80 electrode and in a magnetic field of 1.77 T, peak areas from linear sweep voltammetry were increased

81 Quantification is performed using the peak areas from multiply charged mAb light chain ions us

82 ity by label-free analysis of phosphopeptide peak areas from replicate purifications (median CV: 20%

83 lated from the microfluidic CE-MS data using peak areas generated from extracted ion electropherogram

84 ing on the operating conditions, the current peak area (hereinafter called the measured charge signal

85 the smoothing of data without distortion of peak areas impossible.

86 sing relative peak areas instead of absolute peak areas in each spectrum.

87 termination of extracted ion chromatographic peak areas in isotope-labeled quantitative proteomics is

88 poA-I and apoA-II were calculated from their peak areas in the electropherogram.

89 zation laser beam, which affect the absolute peak areas in the mass spectra, can be minimized by usin

90 cles formed from the same solution, relative peak areas in the same mass spectra vary only by an aver

91 erpene aglycone did not exceed 1.3% of total peak area indicating almost complete decomposition/trans

92 Upon charge doping, the Raman G peak area initially increases for twist angles larger th

93 spectra, can be minimized by using relative peak areas instead of absolute peak areas in each spectr

94 e tolerance test-derived incremental insulin peak, area, insulin-to-glucose index, and acute insulin

95 e fragmentation but also the most repeatable peak area integrals.

96 The peak areas (integrated ion counts over the peptide eluti

97 In this study, peak area integration (PAI), Partial Least Squares Regre

98 n = 10, interday; 0.04-1.35% RSD; n = 5) and peak area (intraday; 0.63-6% RSD; n = 10, interday; 4-12

99 conditions, the coefficient of variation in peak area is 10%, and if labeling efficiency is estimate

100 The total reconstructed peak area is further normalized to the peak area of an i

101 tive calibration of the separations based on peak areas is also performed, again with substantial imp

102 t, the analytical signal (square root of the peak area) is nearly independent of the ohmic drop.

103 A quantitative comparison (percent of total peak area) is presented for 16 components, which compris

104 for spectral matching with a library and to peak area linearity with concentration, calibration plot

105 these extracts were compared in terms of (i) peak area measurements of selected features to assess re

106 tes, achieves a linear detector response for peak area measurements over the range 2.5 to 22.5 pmol (

107 veral repetitions, the error of the relative peak area measurements remained below 11%, suggesting th

108 tate (NAA) to creatine (Cr) was derived from peak area measurements.

109 The peak areas most significant to the evaluation of the par

110 from 0.3 to 0.7 (n = 20) and 2.3 to 4.5 for peak area (n = 20).

111 expressed as ratios of different metabolite peak areas (N-acetylaspartate [NA]/creatine [Cr], NA/cho

112 uantitation methods based on chromatographic peak area (NAAF), parent ion intensity in MS1 (NIAF), an

113 on wavelength, and was compared to the Raman peak area obtained at a sapphire or sapphire/50 nm Au in

114 0.999 was obtained for both peak heights and peak areas obtained from a single chromatogram.

115 s of standards and matched comparison of the peak area of 40 identified and 27 unidentified compounds

116 hiols and by normalizing with respect to the peak area of an injected standard solution of glutathion

117 ucted peak area is further normalized to the peak area of an internal standard protein digest present

118 ratio of the phosphopeptide peak area to the peak area of an unmodified reference peptide that acts a

119 oglobin peptides was normalized to the total peak area of apolipoprotein A-I peptides from human plas

120 The peak area of each signal in mass chromatograms was used

121 Relative standard deviations of normalized peak area of enzymatic product BODIPY-GDP were 5% and 11

122 In a bare capillary, the peak area of G-quadruplex aptamer (G-Apt) was found to d

123 the fraction of labelling; (iii) the average peak area of mono-isotopic and labelled peaks in each sa

124 Total peak area of myoglobin peptides was normalized to the to

125 By integrating and summing the peak area of the aminothiols and by normalizing with res

126 toms per molecule), the correlation of the P-peak area of the amplified gene fragment, with respect t

127 each equilibrium change against the initial peak area of the analyte found in the headspace leads to

128 ee and bound glucose was subtracted from the peak area of the GA-ANDSA resulting from the free glucos

129 tides at levels as low as 1% relative to the peak area of the intact N-terminal peptide.

130 The peak area of the m/z 854.4--> 286.2 transition of paclit

131 d together to define the total reconstructed peak area of the protein digest.

132 We find that the ratio of the peak area of the substrate (S) to that of its monophosph

133 achieved by determining the chromatographic peak area of the two analyte peptides relative to the na

134 This study revealed that relative peak area of the variable protein increased linearly (tr

135 arameters evaluated were phenolic compounds, peak area of unidentified compounds, 5-hydroxymethylfurf

136 tandard deviations for the total ion current peak areas of 500 fmol of angiotensin I were improved by

137 The LC-ESI(-)-MS/MS peak areas of all four OH-TBECH and (OH)(2)-TBECH metabo

138 each protein is determined by comparing the peak areas of all peptides from that protein in one samp

139 proteins, we demonstrated mean increases in peak areas of almost 90% compared to conventional SRM.

140 In addition, a method to deconvolute peak areas of coeluting structural isomers based on uniq

141 acted ion chromatograms to estimate relative peak areas of derivatized amino acids.

142 Increasing peak areas of extracts obtained after digestion of forti

143 amount from 10 to 1000 fmol, while relative peak areas of four constant proteins remained approximat

144 complex were calculated from the sum of ion peak areas of free and complexed proteins during the tit

145 uman anti-thrombin III, AT III) based on the peak areas of free G-Apt.

146 Then, peak areas of identified peptides from one protein are a

147 od based on the ratio between the integrated peak areas of kahweol (K) divided by the sum of K and 16

148 Relative percentage peak areas of PMEs, P(i), PDEs, PCr, and alpha-, beta- a

149 Peak areas of related peptide ions under their selected-

150 The ratio between the peak areas of RNA and proteins was used as a measure of

151 monitoring to determine the chromatographic peak areas of specific tryptic peptides from the protein

152 ard deviations (RSD%) of retention times and peak areas of spiked samples were less than 0.59% and 2.

153 n-day reproducibility of retention times and peak areas of standard nucleotide.

154 Plotting a series of peak areas of the analyte in the headspace after each eq

155 ntrations were determined by comparing MS/MS peak areas of the endogenous peptides to the isotopicall

156 The peak areas of the fibrinogen marker peptides were increa

157 The size and peak areas of the products were obtained by capillary el

158 of I and an internal standard (II) with the peak areas of the same analytes spiked before extraction

159 e was constructed on the basis of the summed peak areas of the three highest intensity fragment ions

160 The MRM results showed an increase in peak areas of the two transition fragments from tryptic

161 The relative peak areas of these 43 glycans were comparable to those

162 ion of lactosylated protein was based on the peak areas of these fragmentation ions.

163 raphy (HPSEC) was used to monitor changes in peak areas of triacylglycerol (TG) polymer, monomer and

164 compounds because the relative single proton peak areas of two chemical species represent the relativ

165 A good correlation (R(2)>0.9) between peaks' area of derivative of melting curves of amplicons

166 in mobile phase and comparing the response (peak areas) of I and an internal standard (II) with the

167 The dependence of peak areas on head pressure in gated injection was shown

168 ample capacity, recovery, reproducibility of peak area or peak height ratios, and linearity between p

169 as widely as quantitation by chromatographic peak areas or peak intensities.

170 The reproducibility of peak heights and peak areas over the course of 64 consecutive injections

171 Relative standard deviations of the peak area, peak height, and full width at half-maximum (

172 Thresholds for blank subtraction, peak area, peak shape, signal-to-noise, and isotopic pat

173 tion with high repeatability with respect to peak area, peak width at half height, and retention time

174 rit in this proof-of-principle study include peak area precision of 4-6%, stable migration times (1.4

175 Although short- and long-term peak area precisions are poor, satisfactory reproducibil

176 e not representative of the sample, with the peak area ratio changing 20% after 20 runs.

177 Calibrated Raman peak area ratio measurements, performed as a function of

178 line on an open DMF device and comparing the peak area ratio obtained to an on-chip generated calibra

179 ence limits for comparing the exposure using peak area ratio of metabolites in animal plasma versus h

180 s based on a quadratic or power curve of the peak area ratio of the metabolite over the internal stan

181 The myoglobin/apolipoprotein A-I peak area ratio was 2 times larger for the human plasma

182 Using the same peak area ratio, it was possible to differentiate even b

183 average particle size is correlated with the peak area ratio.

184 plasmas were calculated, and the slopes and peak area ratios at all concentrations within the standa

185 enriched samples was determined by comparing peak area ratios corresponding to (10)B and (11)B of sam

186 roducibly quantified based on their relative peak area ratios in human serum during PRM assay develop

187 determined directly from the HPLC-ESI-MS/MS peak area ratios of (15)N-N(2)-BPDE-dG and N(2)-BPDE-dG.

188 isons, mean coefficients of variation of the peak area ratios of AA/AA* were less than 5% for all but

189 The peak area ratios of ApoC3-1/ApoC3-0 and ApoC3-2/ApoC3-0

190 (31)P MR peak area ratios of signals from phosphomonoesters (PMEs

191 Statistical analysis of the peak area ratios of the analytes versus the internal sta

192 pecific fragmentation patterns, and relative peak area ratios of two product/precursor ion pairs.

193 Peak area ratios were also higher for AFL than AF for al

194 Different peak area ratios were defined to sensitively detect adul

195 s underscored by calculations performed with peak areas, ratios of standard/internal standard peak ar

196 chnique were well correlated considering the peak area related to trans double bonds and chemometrics

197 C instrument shows good repeatability (<3.5% peak area relative standard deviation), approximately 4

198 osition than electrokinetic injections, with peak area relative standard deviations (RSDs) less than

199 Migration time and peak area relative standard deviations were 3-6% and 0.2

200 ately 970 metabolite signals with repeatable peak areas (relative standard deviation (RSD) </= 25%) c

201 and capillary-to-capillary RSD values for GC peak areas remained under 6% and 4%, respectively.

202 separation (10 min), good retention time and peak area repeatability, (RSD% 0.80 and 8.68, respective

203 grated ISTDs, both Cs and Li improved the Na peak area reproducibility approximately 2-fold, to final

204 y 20,000 psi (1380 bar), the system showed a peak area reproducibility of approximately 2.5% RSD, con

205 Injection volumes of 1.25 nL generated peak area reproducibility of better than 3% relative sta

206 alibration linearity, and retention time and peak area reproducibility were obtained for 14 oxy-compo

207 d 3.6% for peak height and 0.9% and 2.9% for peak area, respectively) and LOD = 7 and 26 mumol L(-1).

208 he small fraction of compounds increasing in peak area response by the addition of MeOH to H2O, 5%, i

209 hermal desorption tubes, and correlating the peak area response from the MS with the vapor concentrat

210 The peak area resulting from the GA-ANDSA derived from free

211 ct peak areas; a histogram of the normalized peak areas reveals clusters of events caused by 0, 1, 2,

212 across all assays in both studies and a mean peak area RSD of <15% in the raw data.

213 A peak area RSD of 0.7% obtained for ten replicates of a r

214 d QC sample measurements demonstrated median peak area RSD values of <20% for the RPC assays and <25%

215 tion (RSD) for retention time was 0.03%, and peak area RSD was 3.8%.

216 vided satisfactory repeatability in terms of peak area (RSD<2.9%) and retention time (RSD<0.2%) both

217 tention times (RSD < 1.5%), and reproducible peak areas (RSD < 2.3%).

218 Acceptable repeatabilities were obtained for peak area (%RSD <3.1% and <3.7%) and migration times (%R

219 the actuation mechanism is very stable with peak area RSDs less than 1.8%.

220 Peak area RSDs were 2-7% for 2, 3-butanediol, ethanol, g

221 reduction peak current (A, nA), a reduction peak area (S, nA x V), and a peak potential (P, V), were

222 ios of fibrinogen to serotransferrin peptide peak areas seems to be possible.

223 Ratios of the peak areas selected by pairs were used as predictors.

224 The run-to-run variation in peak area showed a median of 14%, and the false discover

225 olecular ion but also the reproducibility of peak areas, thereby almost doubling the number of signif

226 ermined from the ratio of the phosphopeptide peak area to the peak area of an unmodified reference pe

227 nduced a pronounced reallocation of lipidome peak area to triacylglycerols.

228 ctropherograms generally uses time-corrected peak areas to account for the differences in apparent ve

229 pair and then calculates the ratio of their peak areas to represent the relative concentration diffe

230 emonstrated that good discrimination (99% of peak area under the ROC curve) can be obtained with a re

231 Time to peak, area under the curve, upslope, and peak enhancemen

232 f migration time, peak height, and corrected peak area) under the chosen stacking conditions (cations

233 compound concentrations as well as for total peak area values, disabling prediction of the coffee age

234 Results showed that percentage peak area variation was found to range between 1.4 and 9

235 standard deviations (RSDs) from the absolute peak area varied from 7.6% to 15.8%.

236 It was found that the peak area varied linearly with the applied voltage.

237 Whereas absolute peak areas vary by an average of 59% for a given ion pea

238 t, and linear calibration curves of relative peak area versus aqueous concentration are obtained for

239 Plots of peak area versus sample collection time show excellent l

240 Analytical curves (log-log) of peak area versus sample volume for test compounds are li

241 e by which 50% of cortical vertices attained peak area was 14.6 years (SE = .03) in ADHD, significant

242 Correlation of variation (CV) of <10% for peak area was measured from triplicate sample analyses a

243 ilm, and the percent relative uncertainty in peak area was reduced from 15 to 1.7% for the 1347 cm(-1

244 before each CZE run on comprehensive ITP-CZE peak area was studied, and leading electrolyte volumes b

245 The decrease in guanine peak area was used as an analytical signal for the inter

246 sult of enzymatic hydrolysis 85-91% of total peak areas was terpene aglycone, whereas for acid hydrol

247 full-scale manufacturing (1.0-3.5% of total peak area) was found to be reproducible and linear.

248 A third peak, accounting for 3% of the peak area, was eluted in an intermediate position, and s

249 ibilities of retention time, efficiency, and peak area were investigated, and the results showed that

250 Calibration curves constructed from the peak area were linear over 4 orders of magnitude, up to

251 o-day repeatabilities of retention times and peak areas were below 0.5% and 3.5% R.SD.

252 rd deviations (RSDs) for migration times and peak areas were below 2% and 12%, respectively, and an i

253 Their selective ion peak areas were calculated, summed and expressed as perc

254 Overlapping peaks were modeled, and peak areas were extracted using an exponentially modifie

255 II was carried out in transmission mode, and peak areas were found to be time-independent.

256 Peak areas were independent of the thermal ramp rate.

257 etected at the low nanogram (pmol) level and peak areas were linear from 1 to 1000 micrograms for a s

258 Peak areas were linear from 30 to 2000 pg and were repro

259 The peak areas were normalized to the internal standard, N-a

260 Gas chromatographic peak areas were submitted to multivariate statistical an

261 relation curves, rho(o) (peak height) and A (peak area), were shown to be reliable measures of the ex

262 ronic band structure upon doping using the G peak area which is enhanced when the laser photon energy

263 Reproducibility obtained for peak height and peak area with electroosmotic flow injection is comparab

264 s not adsorb appreciably, while a decreasing peak area with increasing distance infers inner surface

265 y reproducibility is obtained using relative peak areas with cannabinol as reference compound.

266 -400 microg/L was linearly correlated to the peak area, with an r2 value of 0.9997.