ライフサイエンスコーパス: chemical ionization

1 urces (electrospray and atmospheric pressure chemical ionization).

2 lecules can be ionized by electron impact or chemical ionization.

3 y ionization as well as atmospheric pressure chemical ionization.

4 es are analyzed and quantified by GC/MS with chemical ionization.

5 hloro fatty aldehydes utilizing negative ion chemical ionization.

6 n to the subspecies level was possible using chemical ionization.

7 s spectrometry detection, using electron and chemical ionization.

8 s was accomplished with GC-MS using positive chemical ionization.

9 Desorption atmospheric pressure chemical ionization, a variant of DESI that uses gas-pha

10 een observed under both atmospheric pressure chemical ionization and atmospheric pressure photoioniza

11 cterization of biochemical ions generated by chemical ionization and electrospray ionization and the

12 sure interface allowing atmospheric pressure chemical ionization and electrospray ionization is descr

13 ampling with subsequent atmospheric pressure chemical ionization and mass analysis.

14 into the gas phase for atmospheric pressure chemical ionization and mass spectrometric analysis.

15 lectrospray ionization, atmospheric pressure chemical ionization, and desorption electrospray ionizat

16 c pressure laser-induced acoustic desorption chemical ionization (AP/LIAD-CI) with O(2) carrier/reage

17 oups by atmospheric pressure covalent adduct chemical ionization (APCACI) tandem mass spectrometry us

18 Negative ion atmospheric pressure chemical ionization (APCI(-)) of 2378-TCDD was described

19 Atmospheric pressure chemical ionization (APCI) and electrospray ionization (

20 was recently coupled to atmospheric pressure chemical ionization (APCI) and shown to be of great util

21 pectrometers, one using atmospheric pressure chemical ionization (APCI) and the other using turbo ion

22 fit of the potential of atmospheric pressure chemical ionization (APCI) combined with GC and triple q

23 The potential of using atmospheric-pressure chemical ionization (APCI) coupled to a tandem quadrupol

24 ay ionization (ESI) and atmospheric pressure chemical ionization (APCI) for the analysis of a small p

25 utilizes gas chromatography with atmospheric chemical ionization (APCI) high-resolution quadrupole ti

26 Atmospheric pressure chemical ionization (APCI) in air or in nitrogen with ju

27 ay ionization (ESI) and atmospheric pressure chemical ionization (APCI) in both positive (+) and nega

28 Atmospheric pressure chemical ionization (APCI) in the positive ion mode and

29 matography coupled with atmospheric pressure chemical ionization (APCI) ion trap mass spectrometry (I

30 Atmospheric pressure chemical ionization (APCI) is used for efficient ionizat

31 ence has shown that the atmospheric pressure chemical ionization (APCI) mechanism can be more complex

32 s spectrometry (MS) and atmospheric pressure chemical ionization (APCI) MS were used in parallel for

33 Atmospheric pressure chemical ionization (APCI) offers the advantage of molec

34 sensitive using either atmospheric pressure chemical ionization (APCI) or electrospray ionization (E

35 hy (pSFC) coupled to an atmospheric pressure chemical ionization (APCI) source and a tandem mass spec

36 The novel atmospheric pressure chemical ionization (APCI) source has been used in combi

37 pole (Q) TOF MS with an atmospheric pressure chemical ionization (APCI) source in order to search for

38 ucts were ionized in an atmospheric pressure chemical ionization (APCI) source infused with one of tw

39 nside the plasma of the atmospheric pressure chemical ionization (APCI) source of a quadrupole ion tr

40 rectly connected to the atmospheric pressure chemical ionization (APCI) source prior to tandem mass s

41 e, a comparison with an atmospheric pressure chemical ionization (APCI) source was conducted.

42 The corona discharge atmospheric pressure chemical ionization (APCI) source was operated in positi

43 n electrospray (ESI) or atmospheric pressure chemical ionization (APCI) source, solid as well as liqu

44 ay ionization (ESI) and atmospheric pressure chemical ionization (APCI) was developed to simultaneous

45 Electrospray (ESI) and atmospheric pressure chemical ionization (APCI) were used to generate ions fr

46 te species, followed by atmospheric pressure chemical ionization (APCI) with a corona discharge (LD-A

47 hy (GC x GC) coupled to atmospheric pressure chemical ionization (APCI) with a high resolution (HR)-t

48 work, the potential of atmospheric pressure chemical ionization (APCI), a softer form of ionization,

49 zation (ESI), nano-ESI, atmospheric pressure chemical ionization (APCI), and desorption electrospray

50 photoionization (APPI), atmospheric pressure chemical ionization (APCI), and electrospray ionization

51 wo alkaloids using ESI, atmospheric pressure chemical ionization (APCI), and heated electrospray ioni

52 APPI were comparable to atmospheric pressure chemical ionization (APCI; e.g., 1 pg for reserpine).

53 d analyte flows into an atmospheric-pressure chemical-ionization (APCI) chamber and is analyzed in a

54 licate glass flow tube reactors coupled to a chemical ionization atmospheric pressure interface time-

55 HOMs were detected with chemical ionization-atmospheric pressure interface-time-

56 search groups upon using ammonia reagents in chemical ionization, but the identity was unknown.

57 ed acoustic desorption (LIAD), combined with chemical ionization by the cyclopentadienyl cobalt radic

58 ed acoustic desorption (LIAD), combined with chemical ionization by the cyclopentadienyl cobalt radic

59 Covalent adduct chemical ionization (CACI) using a product of acetonitri

60 e-focusing mass spectrometer operating under chemical ionization (CI) and fast atom bombardment (FAB)

61 to determine m/z of the [M - H]- ion, and by chemical ionization (CI) in ammonia to obtain accurate m

62 The combination of chemical ionization (CI) IROA and EI/IROA affords a meta

63 Use of CF(4) as a chemical ionization (CI) reagent gas leads to CF(3)(+) a

64 uid chromatography with atmospheric pressure chemical ionization combined with high resolution time-o

65 ions under conventional atmospheric pressure chemical ionization conditions also provides a source of

66 rated by self-reaction of acetonitrile under chemical ionization conditions, reacts with unsaturated

67 under electron capture atmospheric pressure chemical ionization conditions.

68 as chromatography using atmospheric pressure chemical ionization coupled to mass spectrometry (GC/APC

69 ient method, desorption atmospheric pressure chemical ionization (DAPCI), was also used to detect tra

70 using on-line HPLC with atmospheric pressure chemical ionization detection (LC-APCI/MS) yielded a mas

71 using a pulsed nano-ESI/atmospheric pressure chemical ionization dual source for ionization.

72 A multielement external chemical ionization/electron ionization source was coupl

73 n (DESI) and desorption atmospheric pressure chemical ionization experiments are shown to allow rapid

74 A flame-induced atmospheric pressure chemical ionization (FAPCI) source, consisting of a mini

75 of-flight mass spectrometry (GC-QTOFMS) with chemical ionization for analysis providing a comprehensi

76 andling associated with atmospheric pressure chemical ionization for mass spectral analysis.

77 n of gas chromatography atmospheric pressure chemical ionization Fourier transform ion cyclotron reso

78 We developed a chemical ionization gas chromatography/mass spectrometry

79 the feeding period, was analyzed by negative chemical ionization gas chromatography/mass spectrometry

80 The method uses negative chemical ionization gas chromatography/mass spectrometry

81 ds were initially determined by negative ion chemical ionization gas chromatography/mass spectrometry

82 rneal epithelium and quantitated by negative chemical ionization-gas chromatography-mass spectrometry

83 implistic preparation scheme and analysis by chemical ionization-gas chromatography/mass spectrometry

84 ults indicate that electron capture-negative chemical ionization-gas chromatography/mass spectrometry

85 exose structure and thus must be analyzed by chemical ionization GC/MS in order to study multiple iso

86 nthermal sample vaporization with subsequent chemical ionization generates abundant ion signals for s

87 rce based on desorption atmospheric pressure chemical ionization has been developed and deployed for

88 s spectrometric technique using negative ion chemical ionization has been developed for the quantitat

89 Finally, work involving chemical ionization has provided abundant information on

90 nd analyzed by gas chromatography coupled to chemical ionization high-resolution quadrupole time-of-f

91 and negative modes and atmospheric pressure chemical ionization in positive mode.

92 mass spectrometry with atmospheric pressure chemical ionization in selected reaction monitoring mode

93 itivity of detection by atmospheric pressure chemical ionization in the negative ion mode.

94 Atmospheric pressure chemical ionization in the positive ion mode and multipl

95 vaporized and ionized by electron impact or chemical ionization in the source.

96 ector; in this case, an atmospheric pressure chemical ionization interface of a triple quadrupole mas

97 luated by both APPI and atmospheric pressure chemical ionization interfaces were found to be well cor

98 Atmospheric pressure chemical ionization is employed for direct air analysis,

99 developed using capillary gas chromatography-chemical ionization (isobutane)-ion-trap mass spectrosco

100 y liquid chromatography atmospheric pressure chemical ionization (LC-APCI) analysis and confirmed by

101 /mass spectrometry with atmospheric pressure chemical ionization (LC-APCI/MS).

102 from the molecular ions and from their self-chemical ionization ([M]*+, [M+147]+, i.e., [M+(CH3)2-Si

103 aerosol was measured using a high-resolution chemical ionization mass spectrometer (CIMS) equipped wi

104 ter Inlet for Gases and AEROsol coupled to a chemical ionization mass spectrometer (CIMS).

105 wall flow tube coupled to a highly sensitive chemical ionization mass spectrometer (CIMS).

106 sroom using a high-resolution time-of-flight chemical ionization mass spectrometer (HRToF-CIMS) equip

107 an online PTV-GC system with a negative-ion chemical ionization mass spectrometer (methane reagent g

108 tory characterizations of the peroxy radical chemical ionization mass spectrometer (PerCIMS) instrume

109 nds were studied in a selected ion flow tube-chemical ionization mass spectrometer (SIFT-CIMS) at 0.5

110 were performed using the Thermal Desorption Chemical Ionization Mass Spectrometer (TDCIMS) and Ultra

111 nd temperature-programmed desorption aerosol-chemical ionization mass spectrometer analysis of gas-pa

112 e mixture using a novel approach combining a chemical ionization mass spectrometer coupled with a hea

113 latilization impactor (MOVI) high-resolution chemical ionization mass spectrometer in Detling, United

114 uld detect VX selectively and sensitively in chemical ionization mass spectrometers.

115 icle sampling and volatilization with online chemical ionization mass spectrometric analysis.

116 triamcinolone acetonide (TAA) under methane chemical ionization mass spectrometric conditions were e

117 s of trace explosive vapor with negative ion chemical ionization mass spectrometric detection.

118 A selected ion flow tube-chemical ionization mass spectrometric method is present

119 natural isotopomer distribution in negative chemical ionization mass spectrometric mode.

120 We used atmospheric pressure chemical ionization mass spectrometry ((-)APCI-MS) and a

121 In particular, atmospheric pressure chemical ionization mass spectrometry ((-)APCI-MS) provi

122 per describes atmospheric pressure-ion drift chemical ionization mass spectrometry (AP-ID-CIMS) for m

123 e liquid chromatography-atmospheric pressure chemical ionization mass spectrometry (APCI LC-MS) was d

124 omatography (HPLC) with atmospheric pressure chemical ionization mass spectrometry (APCI-MS) is perfo

125 Direct infusion atmospheric pressure chemical ionization mass spectrometry (APCI-MS) was comp

126 ectrometry (ESI-MS) and atmospheric pressure chemical ionization mass spectrometry (APCI-MS).

127 ion products was also conducted using online chemical ionization mass spectrometry (CI-TOFMS) where f

128 along with BrO and Br2, were conducted using chemical ionization mass spectrometry (CIMS) during the

129 A new technique employing chemical ionization mass spectrometry (CIMS) is describe

130 Here, we used a coated-wall flow tube and chemical ionization mass spectrometry (CIMS) to study th

131 el (LDD) vehicle exhaust were measured using chemical ionization mass spectrometry (CIMS).

132 nalysis coupled with an atmospheric pressure chemical ionization mass spectrometry (FIA/APCI-MS) syst

133 romatography coupled to atmospheric pressure chemical ionization mass spectrometry (GC-APCI-MS), a st

134 gas chromatography/electron capture negative chemical ionization mass spectrometry (GC/ECNCI/MS).

135 An ion drift-chemical ionization mass spectrometry (ID-CIMS) techniqu

136 uid chromatography with atmospheric pressure chemical ionization mass spectrometry (LC/APCI-MS) was u

137 recently introduced plasma-assisted reaction chemical ionization mass spectrometry (PARCI-MS) for ele

138 romatography coupled to atmospheric pressure chemical ionization mass spectrometry allowed us to do q

139 coated-wall flow tube experiments, both with chemical ionization mass spectrometry detection of the g

140 gas chromatography electron-capture negative chemical ionization mass spectrometry for the enrichment

141 ormaldehyde utilizing selected ion flow tube-chemical ionization mass spectrometry is reported.

142 asuring cannabinoids by atmospheric pressure-chemical ionization mass spectrometry permitted measurem

143 We have developed a chemical ionization mass spectrometry technique for prec

144 nisms have been determined using a flow tube chemical ionization mass spectrometry technique.

145 We used chemical ionization mass spectrometry to examine changes

146 racterized using gas chromatography-negative chemical ionization mass spectrometry to facilitate K(f)

147 on house dust and identified by positive ion chemical ionization mass spectrometry up to 2.5 h after

148 by capillary gas chromatography-negative ion chemical ionization mass spectrometry using selected ion

149 reactions can be directly probed by means of chemical ionization mass spectrometry with a detection l

150 With use of electron and chemical ionization mass spectrometry, C(4)S(6) and C(6)

151 Using chemical ionization mass spectrometry, I2 was observed i

152 luding electron capture atmospheric pressure chemical ionization mass spectrometry, were utilized to

153 raphy/positive ion mode atmospheric pressure chemical ionization mass spectrometry.

154 ordination ionspray and atmospheric pressure chemical ionization mass spectrometry.

155 matography coupled with atmospheric pressure chemical ionization mass spectrometry.

156 enzyl bromide, which is detected by negative chemical ionization mass spectrometry.

157 apillary gas chromatography and negative ion-chemical ionization mass spectrometry.

158 F2alpha), by gas chromotography/negative ion chemical ionization mass spectrometry.

159 ope dilution gas chromatography negative-ion chemical ionization mass spectrometry.

160 r 25(OH)D by using HPLC atmospheric pressure chemical ionization mass spectrometry.

161 ivatives, which are detected by negative ion chemical ionization mass spectrometry.

162 spectroscopy (ESI-MS) or gas chromatography-chemical ionization mass spectroscopy (GC/CI-MS).

163 zed by gas chromatography (GC) with negative chemical ionization mass spectroscopy (NCI-MS).

164 Negative ion chemical ionization mass spectroscopy of two major compo

165 I was substantiated using gas chromatography-chemical ionization mass spectroscopy.

166 A high-resolution time-of-flight chemical-ionization mass spectrometer (HR-ToF-CIMS) usin

167 g gas chromatography and quantified by using chemical-ionization mass spectrometry that produces pred

168 romatography coupled to atmospheric-pressure chemical-ionization mass spectrometry, and show that cho

169 ectrometry (ESI-MS) and atmospheric pressure chemical ionization-mass spectrometry (APCI-MS) for the

170 an and indoor air using atmospheric pressure chemical ionization-mass spectrometry (APCI-MS).

171 ray detection (PDA) and atmospheric pressure chemical ionization-mass spectrometry (APCI-MS).

172 n liquid chromatography/atmospheric pressure chemical ionization-mass spectrometry (LC/APCI-MS).

173 rCl, and Cl2 made using atmospheric pressure chemical ionization-mass spectrometry at Alert, Nunavut,

174 lly pure Ch-15-HpETE by atmospheric pressure chemical ionization-mass spectrometry coupled with chira

175 traction and gas chromatography-positive ion chemical ionization-mass spectrometry.

176 alpha) using gas chromatography-negative ion chemical ionization-mass spectroscopy in 10 normal subje

177 (2alpha)) by gas chromatography-negative ion chemical ionization-mass spectroscopy, and histamine by

178 isotope dilution gas chromatography/negative chemical ionization/mass spectrometry (MS) assay for 15-

179 uanidine] by gas chromatography/negative-ion chemical ionization/mass spectrometry after derivatizati

180 newly developed gas chromatography/negative chemical ionization/mass spectrometry method employing 2

181 Gas chromatography/negative ion chemical ionization/mass spectrometry was used to determ

182 named electron capture atmospheric pressure chemical ionization/mass spectrometry, provided an incre

183 gas chromatography/electron capture negative chemical ionization/mass spectrometry.

184 pared with conventional atmospheric pressure chemical ionization methodology.

185 etection of condensed phases than with other chemical ionization methods.

186 in real time (DART)-type metastable-induced chemical ionization (MICI, molecular weight limited).

187 running in the negative atmospheric pressure chemical ionization mode (APCI-qTOF-HRMS).

188 ection with an electron capture negative ion chemical ionization mode was employed to enhance the sen

189 meter in a positive ion atmospheric pressure chemical ionization mode.

190 d, and detected by GC-MS in the negative-ion chemical ionization mode.

191 trospray ionization and atmospheric pressure chemical ionization modes of MS.

192 ization and pulsed positive ion/negative ion chemical ionization modes on two different GC columns (o

193 patterns from electronic impact and positive chemical ionization modes, several products were tentati

194 nitrates (pONs) were quantified using online chemical ionization MS during June and July of 2013 in r

195 ol was confirmed by radio-HPLC,(1)H-NMR, and chemical ionization-MS.

196 etected by negative ion-atmospheric pressure chemical ionization-MS/MS.

197 GC-QTOF-MS extracts were run in negative chemical ionization (NCI) for 21 targets (mainly pyrethr

198 nal standard [1-(13)C]3MH (M+1) and negative chemical ionization (NCI) gas chromatography/mass spectr

199 The negative chemical ionization (NCI) spectrum of the corresponding

200 nd 20-HETE were detected in the negative ion chemical ionization (NICI) using methane as a reagent ga

201 ethods such as negative ion electron capture chemical ionization, no derivatization of retinoic acid

202 A similar mechanism involving the chemical ionization of acetone with excess ammonia also

203 Chemical ionization of all the agents and simulants was

204 cy and repeatability of atmospheric pressure chemical ionization of both methyl chloroformate (MCF) a

205 Anions generated by chemical ionization of fluoranthene are often used for b

206 water was used as the reagent ion (H3O+) for chemical ionization of methanol in an ion trap mass spec

207 the efficiency of desorption and subsequent chemical ionization of nonvolatile, thermally labile mol

208 iquid chromatography to atmospheric pressure chemical ionization of quadrupole time-of-flight mass sp

209 tes a (63)Ni source for atmospheric-pressure chemical ionization of the analytes.

210 ce sampling followed by atmospheric pressure chemical ionization of the gas phase species produced wi

211 The atmospheric pressure chemical ionization of triacetone triperoxide (TATP) wit

212 t, leading to generation of reagent ions for chemical ionization of vaporized analyte.

213 ent quantitation, as measured by GC-positive chemical ionization (PCI)-MS/MS.

214 agment ions generated under the negative ion chemical ionization process.

215 tical performance is achieved using negative chemical ionization providing detection limits of 150 ng

216 Chemical ionization reaction time-of-flight mass spectro

217 of M- or M x NO2- from atmospheric pressure chemical ionization reactions in purified air at 100 deg

218 in the mass analyzer for up to 10 s to allow chemical ionization reactions with the neutral molecules

219 The mass spectrum of the chemical ionization reagent acetonitrile in an ion trap

220 distances, was obtained using ethanol as the chemical ionization reagent and using pooled masses repr

221 Prior to analysis using methanol as the chemical ionization reagent gas, the extract was dried w

222 The technique utilizes NO(2)(-) as a chemical ionization reagent in an electron-transfer reac

223 t protonated hydrazine can serve as a useful chemical-ionization reagent for quantifying atmospheric

224 The alkali metal ions serve as in situ chemical ionization reagents of the neutral analyte mole

225 Chemical ionization reduced the amount of fragmentation

226 go deoxygenation during atmospheric pressure chemical ionization resulting from thermal energy activa

227 le the third was equipped with a nitrate ion chemical ionization source allowing detection of neutral

228 was integrated with an atmospheric pressure chemical ionization source and a tandem mass spectromete

229 The use of a new atmospheric-pressure chemical ionization source for gas chromatography (APGC)

230 A novel chemical ionization source for organic mass spectrometry

231 ctron emitter as a soft atmospheric pressure chemical ionization source is presented, which operates

232 mer into the commercial atmospheric pressure chemical ionization source on this mass spectrometer.

233 irect injection into an atmospheric pressure chemical ionization source operated in negative ion mode

234 iquid injection into an atmospheric pressure chemical ionization source, followed by quadrupole time-

235 s of an ambient DART-type metastable-induced chemical ionization source.

236 e of a corona discharge atmospheric pressure chemical ionization source.

237 mples into a commercial atmospheric pressure chemical ionization source.

238 Methods for atmospheric pressure chemical ionization tandem mass spectrometry (APCI-MS/MS

239 rmed using positive ion atmospheric pressure chemical ionization tandem mass spectrometry (APCI-MS/MS

240 omatography combined to atmospheric pressure chemical ionization tandem mass spectrometry, GC/APCI-MS

241 Acetonitrile chemical ionization tandem MS was used to determine doub

242 d liquid chromatography/atmospheric pressure chemical ionization-tandem mass spectrometry (LC/APCI-MS

243 A new isotope dilution gas chromatography/chemical ionization/tandem mass spectrometric method was

244 n liquid chromatography/atmospheric pressure chemical ionization/tandem mass spectrometry.

245 ques, including on-line atmospheric pressure chemical ionization techniques.

246 We present results from a high-resolution chemical ionization time-of-flight mass spectrometer (HR

247 The molecular MS (atmospheric pressure chemical ionization time-of-flight, APCI-TOF-MS) data se

248 h GCxGC coupled to electron capture negative chemical ionization-time-of-flight mass spectrometry (EN

249 in combination with proton-transfer reaction chemical ionization to provide the advantages of specifi

250 ng capillary gas chromatography/negative ion chemical ionization to quantitate urine concentrations o

251 ionization (EI) at low energies (10 eV) and chemical ionization using cyclopentadienyl cobalt radica

252 ieved through selective atmospheric pressure chemical ionization using nitrate reactant ions (NO(3)(-

253 ion and compared for electron ionization and chemical ionization using several liquid reagents with i

254 trospray ionization and atmospheric pressure chemical ionization, using a common atmosphere/vacuum in

255 Atmospheric pressure chemical ionization was compared with electrospray ioniz

256 As a result, chemical ionization was shown to be more effective than

257 iode thermal desorption/atmospheric pressure chemical ionization was systematically investigated for

258 ilization followed by electron ionization or chemical ionization, which can lead to a considerable de

259 Chemical ionization with a series of proton-transfer rea

260 at, during negative ion atmospheric pressure chemical ionization with collision-induced dissociation,

261 ed acoustic desorption (LIAD), combined with chemical ionization with the ClMn(H(2)O)(+) ion, is demo