ライフサイエンスコーパス: eluent

1 tions (i.e., packing type, ionic strength of eluent).

2 he crystallization solvent and xylene as the eluent.

3 ivatives were chromatographed using a binary eluent.

4 as the packing material with methanol as the eluent.

5 tial organic content of the second-dimension eluent.

6 nt upon the type and composition of the bulk eluent.

7 ly differed from the composition of the bulk eluent.

8 5mL of 1mol/L HCl was used as eluent.

9 the variation of the internal energy of the eluent.

10 suppressed at 20-30% of acetonitrile in the eluent.

11 d to a microelectrode immersed in the column eluent.

12 organic solvent immiscible with the aqueous eluent.

13 gel using hexane-EtOAc solvent system as the eluent.

14 to quantitate the metal composition of each eluent.

15 e and does not require volatilization of the eluent.

16 exclusion mode (ICE) using only water as the eluent.

17 n of the metal composing the chromatographic eluent.

18 is more sensitive, faster and consumes less eluent.

19 h-temperature elution with water as the sole eluent.

20 L of 1 mol/L HCl and 5% thiourea was used as eluent.

21 through method with fully aqueous medium as eluent.

22 ough method with fully aqueous medium as the eluent.

23 rent compositions of electrolytes in aqueous eluents.

24 ent in the stationary phase for organic-rich eluents.

25 f magnitude over the tested range of aqueous eluents.

26 atography in a variety of acetonitrile/water eluents.

27 ate, hydroxide and carbonate as suppressible eluents.

28 Buffered eluents (0.1 M ammonium acetate) were necessary to stabi

29 The minor portion of the eluent (10%) was taken for oa-TOFMS for identification.

30 ator elution, the ammonium acetate generator eluent (15-20 mL) is passed through a tandem IC-H Plus c

31 ease in fatty acids released into the venous eluent (29.4 nmol/ml in transgenic versus 1.35 nmol/ml o

32 The bulk of the eluent (90%) from the UV detector was directed to an ICP

33 methodologies by effective pH control of the eluent (95% phosphate buffer: 5% methanol, v/v) to the n

34 pH, contact time, type and concentration of eluent, adsorption capacity, sample volume and interfere

35 copy has been extended by splitting the HPLC eluent after conventional UV detection and sending part

36 sample and eluent, volume of the sample and eluent, amount of chelating resin, and interference of i

37 n of an electrolytically generated hydroxide eluent and an electrolytic suppressor, the eluent is pas

38 hat when the percent organic modifier in the eluent and column temperature are adjusted to keep reten

39 tions (type, concentration and volume of the eluent and desorption time), sample volume and interferi

40 ns or ionizable compounds with pure water as eluent and detecting them in a simple fashion has been a

41 lbenzene) column using 1-10% acetonitrile as eluent and follows the reverse order of the polar surfac

42 We varied pH of the eluent and hydrophobicity of ion-pairing modifier to ach

43 l a challenging task since only water as the eluent and no organic modifiers can be used to drive the

44 ive better thermal equilibration between the eluent and the column compared to wider bore columns.

45 he temperature mismatch between the incoming eluent and the column must be minimized (<5 degrees C),

46 of the heat and energy exchanged between the eluent and the external surroundings during each transfo

47 of organic solvent modifier employed in the eluent and the pH of the buffer system.

48 were performed both in common reversed-phase eluents and environmental friendly ethanol-based alterna

49 d to manually prepared carbonate-bicarbonate eluents and with considerable savings in time.

50 rial that is consumed in these assays is the eluent, and hence, the operation cost is low.

51 required less than 32 mg of sample, 50 mL of eluent, and less than 4 h to complete the measurement of

52 o limitation on the type of salt used as the eluent, and they exhibit unique selectivities.

53 ype, concentration, volume, flow rate of the eluent; and matrix effects on the retention of the metal

54 etention when solvent is added to NaCl-based eluents; and (iii) suppression of much of the column's h

55 A suppressed hydroxide eluent anion chromatograph effluent flows through the ou

56 is of competitive Langmuir isotherms, if the eluent anion is more strongly retained than the analyte

57 If the charge of the analyte and eluent anions are different (e.g., Br(-) vs CO3(2-)), th

58 ifferent RPLC stationary phases in different eluents are compared to elucidate the similarities and d

59 The eluents are detected using a unique spectrometer equippe

60 ained by the use of external gradient of the eluent, are brought about by the formation of an interna

61 ated the length of tubing needed to heat the eluent as a function of the column linear velocity for b

62 determined by IAM-HPLC in any 10 mM buffered eluent at pH 5.

63 actions when CH3CN is used with NaClO4-based eluents at a neutral pH (i.e., this eluent system separa

64 11min with UV and MS compatible, buffer-free eluents at moderate temperature.

65 e of both phosphate and fluoride ions in the eluent, band broadening caused by Lewis acid/base intera

66 lic-phase monolithic columns, with capillary eluent being deposited on a standard MALDI plate along w

67 rates, type, concentration and volume of the eluent, breakthrough volume, and effect of other ions we

68 ate or other strong, hard Lewis bases to the eluent brings about elution, but the resulting peak is o

69 uenced by the electrolyte composition of the eluent but with a consistent trend for a diverse set of

70 y was used to investigate the uptake of RPLC eluents by a C 18-bonded packing.

71 approach also opens the possibility that an eluent can be individually tailored to meet the specific

72 eric factors while elution was influenced by eluent cation complexation.

73 s and 4 microL/min water flowing through the eluent channel, with a reverse bias of -12 V, the leakag

74 sign these devices do not produce gas in the eluent channel; hence, it is not necessary to remove gas

75 In hydroxide eluent chromatography, the device largely removes the re

76 the number of fractions of the first column eluent collected, and the analysis time of the first dim

77 e unretained dead time marker for water-rich eluents combined with the regression results from excess

78 an ammonium acetate buffered methanol-water eluent, compatible with mass spectrometry (MS).

79 pH 7 from sample volume up to 400mL and then eluent completely with 2mL of 0.5molL(-1)HNO3.

80 as used to measure the excess volume of each eluent component for binary and ternary mixtures of wate

81 sed to determine the absolute volume of each eluent component in the stationary phase as a function o

82 direct measurement of excess volumes of each eluent component without numerical integration, assumed

83 used to simultaneously measure the uptake of eluent components by a C(18)-bonded reversed-phase liqui

84 to detecting capillary electrophoresis (CE) eluent components by interfacing CE with a surface-enhan

85 as to determine whether or not the uptake of eluent components immobilized as part of the stationary

86 The results indicate that all three eluent components interacted with the alkane bonded phas

87 The absolute sorption isotherms of the eluent components were indirectly estimated by a combina

88 ined were excess volumes of sorption for the eluent components.

89 ects of key experimental parameters, such as eluent composition and elution pressure, on separation e

90 zed conditions of aqueous acetonitrile (ACN) eluent composition and temperature are established for t

91 , and tetrahydrofuran over the full range of eluent composition at 25 degrees C.

92 dence of perfluoromethylene selectivity upon eluent composition explains the typical reversed-phase b

93 ries of test analytes over the full range of eluent composition for methanol and acetonitrile with wa

94 the stationary phase but only over a limited eluent composition range.

95 g a series of strategies specific to limited eluent composition range.

96 rease, which necessitates careful control of eluent composition to achieve separation of all the taxa

97 The shift of the critical eluent composition with the monomer composition of the p

98 se could be estimated over the full range of eluent composition.

99 hase volume but only over a limited range of eluent composition.

100 tor calibration, or off-line analysis of the eluent composition.

101 variation of the particle properties and the eluent composition.

102 For the C8 phase with eluent compositions in the 40%-60% ACN range, the k' val

103 The higher retention on the latter requires eluent compositions near 50% ACN, where careful temperat

104 s were used and evaluated for the water-rich eluent compositions.

105 ly 350 S.cm2/equiv) of H+ and relatively low eluent concentration allows sensitive conductometric det

106 (2-)), the analyte peak shapes depend on the eluent concentration in a more complex pattern.

107 ), the availability of effective methods for eluent concentration is important.

108 ection volume, carrier stream flow rate, and eluent concentration on system response.

109 s of altering and extending the initial NaOH eluent concentration on the retention of 42 different ca

110 rge on the ion and (b) at the same hydroxide eluent concentration, retention is greatly dependent on

111 pH, amount of tea waste, extraction time and eluent concentration.

112 and can easily generate significantly higher eluent concentrations (at least to 40 mM carbonate), pav

113 ng to be used over long periods at practical eluent concentrations, paving the way for suppressed hyd

114 For practical eluent concentrations, suppressor active lengths less th

115 The experiments were carried out with eluents consisting of binary aqueous mixtures with aceto

116 sed on maintaining the ionic strength of the eluents constant.

117 hanced in terms of reduced analysis time and eluent consumption with respect of classical HPLC method

118 med by HPLC on 5-mum Zorbax SB-CN column and eluent containing 40% acetonitrile (v/v), 20 mM phosphat

119 old PFP, acetonitrile/methanol based aqueous eluents containing either phosphoric or perchloric acid

120 old PFP, acetonitrile/methanol based aqueous eluents containing phosphoric acid) as preferred methods

121 h the external wall of the column during the eluent decompression was estimated by measuring the surf

122 The results showed that, during the eluent decompression, the heat released by the friction

123 At certain experimental conditions, the eluent divided into two phases, both of which moved thro

124 ion mass spectrometry (LC-ESI-MS), where the eluent does not contain any ion-pairing reagent (IPR).

125 y used to separate basic compounds in acidic eluents due to their high efficiency, good mechanical st

126 H (1.5-3), ultralow-pH (0), and high-pH (12) eluents effect the retention properties of these mixed-m

127 Ultralow-pH eluents effectively separate small peptides on both phas

128 The use of modified carbon dioxide eluents eliminated the mobile phase incompatibility prob

129 our different purposes: (1) it increases the eluent entropy at constant temperature (for approximatel

130 le 2D peak capacity is maximum for a certain eluent flow rate and column length of the second-dimensi

131 The effects of the eluent flow rate and composition as well as the nebulize

132 The effects of the eluent flow rate and composition as well as the nebulize

133 ptic digest of bovine serum albumin using an eluent flow rate of 55 muL min(-1).

134 e sample solution, type and concentration of eluent, flow rates of the sample and eluent, volume of t

135 (anionic and nonionic surfactants) micellar eluent for determination of the total PET radioligand co

136 flow rates, type and the smallest amount of eluent for elution of cadmium ions, break through volume

137 pendant droplet evaporation for exchange of eluents for (1)H nuclear magnetic resonance ((1)H NMR) p

138 5%); (2) it increases the temperature of the eluent (for approximately 5%); (3) it provides heat to t

139 -performance liquid chromatography (RP-HPLC) eluent fractions, either before or after lyophilization.

140 at the end of the (1)D column to monitor the eluent from (1)D and assist in reconstructing (1)D eluti

141 Pretreatment with the eluent from endothelial cultures followed by cardioplegi

142 The eluent from the LC column is mixed online with a continu

143 In addition, the liquid eluent from the separation was directed on-line into an

144 nalyte was eluted in back-flush mode and the eluent from the SPE column was diluted through a mixing

145 In this study, the polymer-containing eluent from the ThFFF system was mixed on-line with MALD

146 loys a pulsed electric field to transfer the eluents from multiple parallel columns directly onto MAL

147 We introduce a novel carbonate-bicarbonate eluent generation system in which CO2 is introduced usin

148 introduction is possible prior to hydroxide eluent generation, this configuration causes complicatio

149 ped with isocratic pumps and an electrolytic eluent generator (EG) is introduced, replacing external

150 atile than current electrodialytic carbonate eluent generators and can easily generate significantly

151 ated region during their passage; the chosen eluent gradient elutes the analytes of interest into the

152 In addition, eluent gradients were created by simultaneously using tw

153 croscopic levels of the acetate anion of the eluent have been effectively removed.

154 showing the general utility of the union for eluent identification and low-level detection.

155 s in 5' or 3' terminal bases with NaCl-based eluents); (ii) reduced retention when solvent is added t

156 e selectively excluded so the composition of eluent in or on the stationary phase often significantly

157 calculate the volume and composition of the eluent in the stationary phase for organic-rich eluents.

158 nmol/ml in transgenic versus 1.35 nmol/ml of eluent in wild-type mice), a 4-fold increase in lysophos

159 the use of 0.1% phosphoric acid/acetonitrile eluents in both dimensions.

160 pillary-scale electrodialytic generators for eluents in ion chromatography are described.

161 to increase the elution strength of aqueous eluents in reversed phase LC is the application of high

162 identical LC settings with formic-acid-based eluents in the last dimension.

163 roach will be of value for the generation of eluents in the separation of proteins and other biomolec

164 mination, such as pH of the sample solution, eluent including type, concentration and volume, adsorpt

165 utes) and reoxygenation (20 minutes) and the eluent incubated with naive myocytes, which were then su

166 lysis was accomplished by introducing the GC eluent into a pulsed glow discharge operating at a rate

167 ons, paving the way for suppressed hydroxide eluent ion chromatography (IC), which is discussed in a

168 nsP5, InsP6) was carried out using hydroxide eluent ion chromatography.

169 d toward lower plate heights with increasing eluent ionic strength before converging at some limiting

170 The eluent is a dilute solution of a neutral salt, sometimes

171 The eluent is initially under atmospheric pressure ( P (0))

172 vity, and the water from the first-dimension eluent is largely eliminated to allow interaction-free S

173 Axial mixing of the sample with a gaseous eluent is minimal, and this eliminates the tailing in pe

174 The eluent is monitored fluorescently at Ex553 nm/Em570 nm b

175 If the eluent is more weakly retained on the stationary phase,

176 mmunoaffinity chromatography, and the acidic eluent is neutralized via an in-line mixing tee.

177 e eluent and an electrolytic suppressor, the eluent is passed into a membrane device where KOH is pas

178 The spin column eluent is then analyzed under denaturing conditions by e

179 In a second step, the pressurized eluent is transferred to the inlet of the chromatographi

180 CEC eluent is transported to the matrix reservoir via a capi

181 its very high hydration energy and with most eluents its capacity factor approaches zero.

182 The FAVE provides isolation from the eluent matrix and can be used for other detectors where

183 nd can be used for other detectors where the eluent matrix is incompatible with the detector.

184 pH, adsorbent amount, contact time, type of eluent, matrix and reusability) affecting the extraction

185 ation, retention is greatly dependent on the eluent metal cation.

186 or column (PFC kit) was installed in between eluent mixer and injector to reduce contamination.

187 rates would be collected with the NPs in the eluent of F4.

188 Each peak was collected as the eluent of the HPLC separation in the liquid phase.

189 n the nanotubes were sequentially exposed to eluents of decreasing electrolyte concentrations, possib

190 aCl2 concentrations before being rinsed with eluents of different solution chemistries to induce thei

191 oving the ion-pair reagent, the detection of eluents of monoamine neurotransmitters by an ion trap MS

192 nd mobile phases in dynamic equilibrium with eluents of varying composition.

193 The effect of this uptake of eluent on the retention of the test solutes appeared to

194 c sampling (injection) of the primary column eluent onto the secondary column.

195 tor of 2-3 of best case suppressed hydroxide eluent operation.

196 For late-eluting AAs, higher eluent organic content and fraction collected volumes co

197 splay of stationary phase retention (Sf) and eluent partition coefficients (K), which represent criti

198 e adjustment of oligonucleotide retention by eluent pH and composition.

199 use of organic modifiers, and variations of eluent pH can be used to tailor a given separation.

200 For a weak base that was tested in eluent pH either above or below its pK(a), we demonstrat

201 The effects of ionic strength, eluent pH, and counterion type are discussed.

202 ic carbon (PGC) columns and phosphate buffer eluents (pH 6.7 and pH 9.1, respectively) were developed

203 ules between the ion exchanger phase and the eluent phase and is applied for conductivity suppression

204 oach offered enhanced throughput in terms of eluent preparation time and labor, and with a more repro

205 ovided an estimate of the absolute volume of eluent present in the stationary phase.

206 ely, P < .05), whereas smooth muscle culture eluent pretreatment resulted in no change (23.7 +/- 4.0

207 les provides the necessary functionality for eluent propulsion and sample valving.

208 revent any leached extractant or oxalic acid eluent reagents from interfering with subsequent separat

209 ear velocity in the heater tubing and longer eluent residence times in the heater.

210 tantly, the use of pH 10 carbonate buffer as eluent resulted in facile release of bound biotin from t

211 pulsion/attraction is strongly influenced by eluent salinity: k(IAM) values for cations differ by mor

212 , stirring time, concentration and volume of eluent, sample flow rate and sample volume was examined

213 ed microcolumn and As(III) was determined in eluent solution by electrothermal atomic absorption spec

214 and desorption times, type and volume of the eluent solvent and interfering ions of the sample were i

215 = 2; amount of damped MHAMS-MIONPs = 90 mg; eluent solvent volume = 2.6 mL of 3% acetic acid in acet

216 of tea waste, desorbed with nitric acid as a eluent solvent, and determined by flame atomic absorptio

217 therms provided an estimate of the volume of eluent sorbed by the stationary phase but only over a li

218 excess isotherm data, the absolute volume of eluent sorbed by the stationary phase could be estimated

219 en the HPLC and ICPMS, which consisted of an eluent splitter, a desolvation unit, and the ICPMS built

220 e where KOH is passively introduced into the eluent stream using Donnan forbidden leakage.

221 mixing of the penetrated hydroxide with the eluent stream, resulting in a noise level of < or = 7 nS

222 ), flow rate (F), temperature (T), and final eluent strength (phi(final)) on the peak capacity of sep

223 Last, the final eluent strength should be adjusted so that the last solu

224 sion is kept in a no-elution state using low eluent strength.

225 ce (PAID) is placed after a conventional KOH eluent-suppressed conductometric anion chromatography (S

226 The eluent system allows particular latitude in controlling

227 O4-based eluents at a neutral pH (i.e., this eluent system separates oligonucleotides primarily in or

228 hate was used as the ion-pair reagent in the eluent system.

229 Demonstrably purer carbonate-bicarbonate eluent systems are possible compared to manually prepare

230 derivatization or the use of highly alkaline eluent systems.

231 Thermocouples were used to measure the eluent temperature before and after its passage through

232 e and arsenate anions were more effective as eluents than carboxylic acids and halides, a result that

233 The aqueous/organic eluents that are used with this stationary phase are ide

234 A variety of eluents, the use of organic modifiers, and variations of

235 For carbonate-based eluents, the use of such devices greatly reduces or elim

236 o acts as a mixing chamber, allowing the CEC eluent to be mixed with matrix prior to deposition.

237 condary dimension enables the primary column eluent to be sampled with fidelity onto the secondary co

238 reheater tubing to thermally equilibrate the eluent to the column temperature.

239 electrophoretic separation channel to direct eluent to the integrated electrospray emitter.

240 d desorption time, maximum capacity and also eluent type and concentration was investigated in this s

241 Analytical parameters such as pH, eluent type and its volume, flow rates of sample solutio

242 are many more choices of column type than of eluent type for method development in reversed-phase liq

243 ontaining 1.0 mM sodium tetraborate solution eluent (typically 200 psi) as the pump, and performing o

244 nventional length columns (e.g., 5-15 cm) at eluent velocities corresponding to the minimum plate hei

245 d when particle size is optimized along with eluent velocity and column length.

246 available particle size and then optimizing eluent velocity and column length.

247 lumn temperature improves efficiency at high eluent velocity conditions compared to the efficiency at

248 w rapid calculation of the column length and eluent velocity that will give either the maximum plate

249 by simultaneously optimizing column length, eluent velocity, and particle size.

250 are developed for the optimum column length, eluent velocity, and thus plate count for both the cases

251 We have shown that the 5-10-fold decrease in eluent viscosity that comes from a temperature increase

252 anic modifier to achieve the lowest possible eluent viscosity.

253 ntal analysis experiments, the working time, eluent volume consumed, and mass of compound used were r

254 eters such as sample-to-dispersant ratio and eluents volume on extraction recovery was investigated a

255 dified silica gel, concentration and type of eluent, volume of sample, etc.) on the recoveries of sel

256 tion of eluent, flow rates of the sample and eluent, volume of the sample and eluent, amount of chela

257 f decreasing the analysis times and reducing eluent volumes.

258 The eluent was characterized using mass spectrometry.

259 The eluent was composed of mixtures of methanol and carbon d

260 When the CaCl2 concentration in the eluent was decreased, a larger fraction of deposited MWN

261 The column eluent was dried and derivatized for GC/MS analysis.

262 The ionic strength of the eluent was kept constant at 20 mM.

263 The LC eluent was mixed with alpha-cyano-4-hydroxycinnamic acid

264 (90:10, v/v) at flow rate 1.0mL/min and the eluent was monitored at 219nm.

265 The target peak eluent was subjected to characterisation by tandem mass

266 tionary phase (bonded phase plus immobilized eluent) was dependent upon the type and composition of t

267 an alternative to adding Lewis bases to the eluent, we studied the effect of permanently modifying P

268 exchange chromatography (HPAEC) with nitrate eluents, we found that lactonization of alpha2,8-linked

269 ressibility and the thermal expansion of the eluent were taken into account.

270 HILIC and RPLC eluents were combined post column followed by ESI-MS/MS

271 or in function of acetonitrile amount in the eluent, whereas retention of neutral molecules decreased

272 an achiral stationary phase using an achiral eluent, which leads to the substantial enantiomeric enri

273 ides are present on SDS-gels of the 8 M urea eluent with apparent molecular mass of approximately 210

274 The column eluent with SAT-3 activity failed to transfer sialic aci

275 or bilinear pH-gradient data set obtained in eluents with different but constant organic modifier con

276 xchange using carbonate-bicarbonate and NaOH eluents with step-gradient elution.

277 and up to 100% organic components in the LC eluent without organic loading in the plasma.