ライフサイエンスコーパス: photoionization

1 tra reflect parent radical cations formed by photoionization.

2 ng a high-power femtosecond-pulsed laser for photoionization.

3 e filter of molecular orientations following photoionization.

4 hotoelectron emission from sequential double photoionization.

5 based on three-dimensional momentum-resolved photoionization.

6 le played by high-order partial waves during photoionization.

7 d image the electron wave function in atomic photoionization.

8 he complex correlated dynamics of core-level photoionization.

9 mass spectrometer using atmospheric pressure photoionization.

10 e requisite tools to resolve the dynamics of photoionization(8-12).

11 A new method, photoionization aerosol mass spectrometry (PIAMS), is de

12 We used vacuum-UV photoionization aerosol mass spectrometry and X-ray phot

13 a hitherto undisclosed pathway that involves photoionization and deprotonation of radical cation, fol

14 OM form Trp radical cation (Trp(*+)) via Trp photoionization and direct oxidation, respectively.

15 The photoionization and dissociative photoionization of glyc

16 aphthols QMP 6-8 to S(1) in CH(3)CN leads to photoionization and formation of naphthoxyl radicals.

17 etection of coronene is accomplished through photoionization and is based upon photoionization effici

18 uch an ionosphere could be produced by solar photoionization and jovian magnetospheric particle impac

19 the order of 4 years is suggested, based on photoionization and magnetospheric sweeping.

20 pulsed lasers with peak-intensity above air photoionization and photo-dissociation have demonstrated

21 l explains these defects' robustness against photoionization and room temperature stability.

22 le moieties are capable of undergoing direct photoionization and sensitized photooxidation to form ra

23 mated the chemical composition by using both photoionization and shock considerations.

24 are sensitive to interference effects in the photoionization and the interplay of competing pathways

25 ature using tunable vacuum ultraviolet (VUV) photoionization and time-resolved mass spectrometry.

26 effects as observed in atmospheric pressure photoionization (APPI) and laser ionization (APLI) with

27 ts, by positive-ion (+) atmospheric pressure photoionization (APPI) and negative-ion (-) electrospray

28 trospray ionization and atmospheric pressure photoionization (APPI) as an interface of high-performan

29 eric-pressure chemical ionization (APCI) and photoionization (APPI) can be used.

30 ay ionization (ESI) and atmospheric pressure photoionization (APPI) coupled to high resolution Orbitr

31 ay ionization (ESI) and atmospheric pressure photoionization (APPI) followed by 21 T Fourier transfor

32 ubsequently analyzed by atmospheric pressure photoionization (APPI) Fourier transform ion cyclotron r

33 Here, we present atmospheric pressure photoionization (APPI) Fourier transform ion cyclotron r

34 RT source is similar to atmospheric pressure photoionization (APPI) in that it can produce molecular

35 to lamps in commercial atmospheric pressure photoionization (APPI) ion sources were compared.

36 r (1)D detection, while atmospheric pressure photoionization (APPI) MS and ESI-MS were used for detec

37 A positive ion atmospheric pressure photoionization (APPI) petroleum spectrum yields more th

38 stem interfaced with an atmospheric pressure photoionization (APPI) source and a tandem mass spectrom

39 s were ionized using an atmospheric pressure photoionization (APPI) source equipped with a 10 eV kryp

40 e the performance of an atmospheric pressure photoionization (APPI) source for sampling liquid flows.

41 ions formed within the atmospheric pressure photoionization (APPI) source, were detected by in-line

42 ometry equipped with an atmospheric pressure photoionization (APPI) source.

43 We have coupled atmospheric pressure photoionization (APPI) to a home-built 9.4-T Fourier tra

44 Atmospheric pressure photoionization (APPI) was developed as an alternative t

45 Atmospheric pressure photoionization (APPI) was evaluated for the analysis of

46 n (ESI)(+), ESI(-), and atmospheric pressure photoionization (APPI)(+)) to characterize the nitrogen

47 mpared to ESI(+)/(-) or atmospheric pressure photoionization (APPI)(+).

48 of analyzing lipids by atmospheric pressure photoionization (APPI), atmospheric pressure chemical io

49 hromatography (LC)-APCI/atmospheric pressure photoionization (APPI)-HRTOF-MS for a wider range of fla

50 ved in both cases using atmospheric pressure photoionization (APPI).

51 cluding dopant-assisted atmospheric pressure photoionization (APPI).

52 ization (APCI, 95%) and atmospheric pressure photoionization (APPI, 87%).

53 uum ultraviolet light and the sensitivity of photoionization are exploited to probe the exotic chemis

54 1-c-C5H7OO) and propargylperoxy (CH2=C=CHOO) photoionization are presented as examples.

55 Characterizing time delays in molecular photoionization as a function of the ejected electron em

56 Photoionization at 400 and 267 nm yields the highest mol

57 our ability to generate and control, through photoionization, attosecond electron beams carrying OAM.

58 A likely explanation for these ions is photoionization by solar ultraviolet radiation of neutra

59 Upon photoionization by tunable vacuum ultraviolet synchrotro

60 r-based microplasmas (287.5 nm O(2) resonant photoionization by ~ 5 ns, < 3 mJ pulses) with diverse i

61 s are involved in DCPI: atmospheric pressure photoionization, capable of ionizing polar and nonpolar

62 Electrons detached from atoms by photoionization carry valuable information about light-a

63 e laser ablation remote atmospheric pressure photoionization/chemical ionization (LARAPPI/CI) platfor

64 chemical ionization and atmospheric pressure photoionization conditions.

65 massive shells than Betelgeuse, because the photoionization-confined shell traps up to 35 per cent o

66 part of the wind and forms an almost static, photoionization-confined shell.

67 Vacuum ultraviolet photoionization coupled to secondary neutral mass spectr

68 sublimation in the gas phase exploiting soft photoionization coupled with a reflectron time-of-flight

69 oiting isotope labeling and isomer-selective photoionization coupled with reflectron time-of-flight m

70 plets are directed into the heated capillary photoionization (CPI) device, where the droplets are vap

71 We present a capillary photoionization (CPI) method for mass spectrometric (MS)

72 Inner-shell photoionization creates positive charge, which is initia

73 etermined either with the help of calculated photoionization cross sections and inelastic mean free p

74 termined from (i) the difference in their 4f photoionization cross sections, (ii) the accumulation of

75 ombined dopant-assisted atmospheric pressure photoionization (DA-APPI) and atmospheric pressure chemi

76 Desorption atmospheric pressure photoionization (DAPPI) allows surface analysis in the o

77 the basis of desorption atmospheric pressure photoionization (DAPPI) coupled to Fourier transform ion

78 te that dopant-assisted atmospheric-pressure photoionization (dAPPI) using chlorobenzene as a dopant

79 try method, solvent jet desorption capillary photoionization (DCPI), is described.

80 We demonstrate that chiral photoionization delays depend on both polar and azimutha

81 ecade has produced a large volume of work on photoionization delays following single-photon absorptio

82 measurements of recoil frame angle-resolved photoionization delays in the vicinity of shape resonanc

83 s in the forward-backward and angle-resolved photoionization delays of chiral molecules.

84 lays of up to 60 as and polar-angle-resolved photoionization delays of up to 240 as, which include an

85 We measure a 40-attosecond variation of the photoionization delays over the X(2)Pai(g) vibrational p

86 indicate a previously unknown sensitivity of photoionization delays to electron-hole delocalization a

87 O(+) scattering highlights the connection of photoionization delays with Wigner scattering time delay

88 chemical tag, which selectively undergoes a photoionization/desorption process upon laser irradiatio

89 f a microhelium dielectric barrier discharge photoionization detector (muHDBD-PID) on chip with dimen

90 to the SMS unit, which was hyphenated with a photoionization detector (PID), thus creating a fast GC-

91 wo complementary capacitive detectors, and a photoionization detector (PID).

92 Detection is provided by a photoionization detector operated at a pressure of 0.3 p

93 PPI-MS configuration as well as a commercial photoionization detector to detect benzene and toluene.

94 for aromatic compounds than the traditional photoionization detector.

95 Microfluidic photoionization detectors (muPIDs) based on silicon chip

96 orptive analyte preconcentration, vacuum GC, photoionization detectors, and need-based water-vapor co

97 Experimental measurements of photoionization dynamics have become possible through at

98 licable approach to space- and time-resolved photoionization dynamics in the molecular frame.

99 ue provides insights into the spatiotemporal photoionization dynamics of molecular shape resonances.

100 optical timer and the underlying attosecond photoionization dynamics.

101 between electronic structure and attosecond photoionization dynamics.

102 hrene were detected isomer-selectively using photoionization efficiency (PIE) curves and mass-selecte

103 Photoionization efficiency (PIE) curves for C(3) molecul

104 ascent gas-phase products are identified via photoionization efficiency (PIE) curves, including oxyge

105 lectron time-of-flight mass spectroscopy and photoionization efficiency (PIE) curves, these results d

106 ranck-Condon (FC) spectral simulation of the photoionization efficiency (PIE) curves.

107 The photoionization efficiency curve for CH(3)OO has been me

108 ed through photoionization and is based upon photoionization efficiency curves along with photoion ma

109 as identified isomer-selectively in situ via photoionization efficiency curves and photoion mass-sele

110 er content, and nebulizer temperature on the photoionization efficiency of both clozapine and lonafar

111 as well as the nebulizer temperatures on the photoionization efficiency of CsA in the positive ion mo

112 Photoionization efficiency scans (photon scans) can be r

113 Analysis of photoionization efficiency versus VUV photon wavelength

114 ontrast, covariance-based techniques used in photoionization electron spectroscopy and mass spectrome

115 ource systems including atmospheric pressure photoionization, electrospray ionization, and inductivel

116 ly manifested as differences in the measured photoionization energies of the chiral molecular films.

117 ther demonstrate that, by changing laser and photoionization energies, variations in molecular stabil

118 ed as a function of reaction time, mass, and photoionization energy using multiplexed photoionization

119 photoexfoliation of monolayer MoS2 and water photoionization-enhanced light absorption.

120 Electrospray- and atmospheric pressure photoionization (ESI, APPI) ultrahigh resolution mass sp

121 nal geometry field-free atmospheric pressure photoionization (FF-APPI) source was evaluated against b

122 ation of an online FAIMS-FTMS coupling after photoionization for the analysis of crude oils is shown.

123 (e.g., electrospray or atmospheric pressure photoionization) for characterization of natural organic

124 Here, we used atmospheric pressure photoionization Fourier transform ion cyclotron resonanc

125 ic substitution studies and the detection of photoionization fragments.

126 gher, bacterial phytochrome partly undergoes photoionization from the S(n) state in competition with

127 ings are consistent with standard models for photoionization heating by the ultraviolet radiation bac

128 e liquid chromatography-atmospheric pressure photoionization-high resolution mass spectrometry (UPLC-

129 reakdown products, with atmospheric pressure photoionization in negative ionization mode providing th

130 The concept is based on direct laser photoionization in the ion accumulation and ejection tra

131 trospray ionization and atmospheric pressure photoionization, in both positive-ion and negative-ion m

132 direct sampling and humidity control, with a photoionization ion mobility tube as virtual sensor arra

133 This study developed a thermal desorption-photoionization ion mobility-electronic nose (TD-PIM-Nos

134 As in atmospheric pressure photoionization, ionization in CPI occurs either by prot

135 -art mass spectrometry with ultraviolet (UV) photoionization is mostly limited to time-of-flight (ToF

136 Atmospheric pressure photoionization is performed with the permeation tube in

137 on process induced by bromine 3d inner-shell photoionization is used to identify the cis and trans st

138 ution in laser ablation atmospheric pressure photoionization (LAAPPI) and laser ablation electrospray

139 The laser ablation atmospheric pressure photoionization (LAAPPI) and LDTD-APPI mass spectra of s

140 ntroduce laser ablation atmospheric pressure photoionization (LAAPPI), a novel atmospheric pressure i

141 ser fluence and delay between desorption and photoionization laser pulses was observed for a small mo

142 Here, we report direct photoionization mass spectrometric detection of formalde

143 hromatography (CEC) and atmospheric pressure photoionization mass spectrometry (APPI-MS) provides a u

144 rude oil by GC coupled to vacuum ultraviolet photoionization mass spectrometry (GC/VUV-MS), with a ma

145 ng two complementary techniques: multiplexed photoionization mass spectrometry and cavity-enhanced br

146 t combines in situ synchrotron-radiation VUV photoionization mass spectrometry and ex-situ gas chroma

147 mulations and molecular beam vacuum-UV (VUV) photoionization mass spectrometry experiments were perfo

148 es of two-, three-, and four-carbon enols by photoionization mass spectrometry of flames burning repr

149 we used synchrotron-based vacuum ultraviolet photoionization mass spectrometry to study the pyrolysis

150 Laser desorption photoionization mass spectrometry using 337-nm pulses fo

151 ctive sampling probe (microprobe) coupled to photoionization mass spectrometry using soft laser singl

152 and photoionization energy using multiplexed photoionization mass spectrometry with tunable synchrotr

153 ous spectroscopic tools, including vacuum UV photoionization mass spectrometry, absorption and action

154 rimental investigation employs purpose-built photoionization mass spectrometry, Fourier-transform inf

155 e products through complementary multiplexed photoionization mass spectrometry, observing SO(3) and i

156 Using in-situ synchrotron vacuum ultraviolet photoionization mass spectrometry, we observe the direct

157 combustion-like conditions with the help of photoionization mass spectrometry, we provide experiment

158 on and studied with vacuum ultraviolet (VUV) photoionization mass spectrometry.

159 ion with d(4)-acetaldehyde using multiplexed photoionization mass spectrometry.

160 irred-reactor synchrotron vacuum ultraviolet photoionization mass spectrometry.

161 using online synchrotron vacuum ultraviolet photoionization mass spectroscopy (SVUV-PIMS), which unc

162 the observed results in atmospheric pressure photoionization, mass spectrometry (MS), and analytical

163 APPI-MS) and desorption atmospheric pressure photoionization-mass spectrometry (DAPPI-MS).

164 or the experimental values, derived from the photoionization measurements, this discrepancy becomes e

165 VUV photoionization minimizes fragmentation of the molecular

166 The plasma electron temperature of a photoionization model cannot much exceed 20,000 K, but p

167 The predictions of the photoionization model may be useful in estimating ioniza

168 Hence, instead of employing a strict photoionization model, we are guided by the nebular diag

169 Extensive photoionization modelling yields a characteristic radial

170 Photoionization models show that the line ratios are con

171 The photoionization models that have been used successfully

172 Such methods require special care when photoionization occurs near Feshbach resonances due to t

173 also leads, in part, to generation of 3, but photoionization of 1 is significantly less efficient tha

174 The photoionization of 1-alkenylperoxy radicals, which are p

175 The double photoionization of a molecule by one photon ejects two e

176 The photoionization of alkylperoxy radicals has been investi

177 ion pair [R3N(*+).CO2(*-)] generated by the photoionization of amine 1a and the electron capture by

178 using an ultracold neutral plasma created by photoionization of an ultracold atomic gas, we avoid thi

179 attributed to the evaporation and subsequent photoionization of atomic carbon from organic refractory

180 Resonant photoionization of atomic xenon was chosen as a case stu

181 ave analysis is key to interpretation of the photoionization of atoms and molecules on the attosecond

182 Photoionization of B(9) breaks the single-electron B-B b

183 The minimum onset energy of photoionization of cyclopropylamine was calculated to be

184 We have investigated the photoionization of gas-phase and ion-beam desorbed dopam

185 Photoionization of gas-phase dopamine is found to produc

186 The photoionization and dissociative photoionization of glycerol are studied experimentally a

187 Here we investigate photoionization of helium by a sequence of attosecond pu

188 W/cm(2)) intensities, near-infrared-assisted photoionization of helium through Rydberg states results

189 direct comparison of ion yields obtained for photoionization of ion-beam-desorbed dopamine at 267 nm

190 Photoionization of ion-beam-desorbed dopamine exhibits a

191 Photoionization of matter is one of the fastest electron

192 e found that autoionization after soft x-ray photoionization of molecular oxygen follows a complex mu

193 Photoionization of nitrogen dioxide led to the formation

194 electric dipole approximation's validity for photoionization of Rydberg atoms, and it verifies the th

195 ons are typically generated by radiolysis or photoionization of solutes.

196 Ratios of <100 are consistent with photoionization of the absorbing gas by a hard ionizing

197 dication produced by Auger decay after X-ray photoionization of the carbon atom K shell.

198 electrostatic rearrangements resulting from photoionization of the chromophore and neutralization of

199 Furthermore, the dissociative photoionization of the glycerol dimer is investigated an

200 vent clusters containing analyte, that laser photoionization of the solvent precedes ionization of th

201 ron generation by particle photoemission and photoionization of the surrounding water, shed light on

202 Photoionization of these states to three cationic states

203 ertz-probe spectroscopy setup to trigger the photoionization of water molecules with optical laser pu

204 side atoms and molecules that are undergoing photoionization or chemical change falls within this tim

205 the electron-rich electrode whereas in laser photoionization or pulse radiolysis studies, where elect

206 In this study, a prototype vacuum photoionization Orbitrap mass spectrometer was evaluated

207 ectron removal caused by ionizing radiation, photoionization, oxidation, or photosensitization.

208 in aqueous perchlorate glasses, the primary photoionization pathway involves base ionization followe

209 of each partial wave from the angle-resolved photoionization phase shifts in rare gas atoms.

210 Temporal delays extracted from photoionization phases are currently determined with att

211 ationally resolved photoelectron spectra and photoionization phases of N(2) irradiated by a combinati

212 ht mass spectrometry, we discovered a unique photoionization-photodissociation fragmentation process

213 We describe the use of photoionization (PI) mass spectrometry (MS) for high-spe

214 In this study, photoionization (PI) was evaluated as the ion source for

215 e primarily focus on the mechanism of direct photoionization (PI), as compared to the dopant mechanis

216 Analysis of the data establishes a threshold photoionization potential for NM of 4.5 +/- 0.2 eV, whic

217 is proposed and benchmarked to describe the photoionization process and to do the retrieval using a

218 he volume of a Rydberg atom to show that the photoionization process only occurs near the nucleus, wi

219 The hydrated electrons also formed in the photoionization process were trapped by dissolved molecu

220 simultaneously excited during the soft x-ray photoionization process.

221 ic compounds in aquatic systems with similar photoionization processes.

222 ation at all four wavelengths, though 267-nm photoionization produces the highest yield of dopamine f

223 The photoionization products, 2AP radicals, rapidly oxidize

224 tals due to the rotational dependence of the photoionization profiles.

225 Exploiting synchrotron vacuum ultraviolet photoionization reflectron time-of-flight mass spectrome

226 Exploiting tunable photoionization reflectron time-of-flight mass spectrome

227 in the gas phase utilizing isomer-selective photoionization reflectron time-of-flight mass spectrome

228 phase upon sublimation via isomer-selective photoionization reflectron time-of-flight mass spectrome

229 ers utilizing isomer selective, tunable soft photoionization reflectron time-of-flight mass spectrome

230 phase upon sublimation via isomer-selective photoionization reflectron time-of-flight mass spectrome

231 hase through isomer-selective, tunable, soft photoionization reflectron time-of-flight mass spectrome

232 e gas phase using tunable vacuum ultraviolet photoionization reflectron time-of-flight mass spectrome

233 Using isomer-selective vacuum ultraviolet photoionization reflectron time-of-flight mass spectrome

234 tilizing isomer-selective vacuum ultraviolet photoionization reflectron time-of-flight mass spectrome

235 on ionization and tunable vacuum ultraviolet photoionization reflectron time-of-flight mass spectrome

236 Exploiting tunable photoionization reflectron time-of-flight mass spectrosc

237 the measurement of time-resolved core-level photoionization remained out of reach.

238 The photoionization signal intensity increases linearly with

239 A weaker methyl vinyl ketone (MVK) photoionization signal is also attributed to OH roaming.

240 Soft X-ray atmospheric pressure photoionization (soft X-ray APPI) as an ionization metho

241 e study makes a strong case for the use of a photoionization source as an alternative to the radioact

242 ed differential mobility spectrometer with a photoionization source interfaced to a gas chromatograph

243 ential mobility spectrometer equipped with a photoionization source operating at atmospheric pressure

244 sting platform utilizing an ultraviolet (UV) photoionization source was used with custom electronic c

245 Three-step resonance photoionization spectra of plutonium have been studied w

246 higher ionization threshold and distinctive photoionization spectra.

247 Synchrotron photoionization spectroscopy employing coincidence techn

248 We directly observed HCOH using photoionization spectroscopy following UV photodissociat

249 nation for the appearance of the cyclopropyl photoionization spectrum.

250 ementing lab-scale electron impact and laser photoionization studies for a wide variety of reactors,

251 aging is presented, allowing isomer-resolved photoionization studies on isomerically mixed samples.

252 A liquid chromatography atmospheric pressure photoionization tandem mass spectrometric method was dev

253 e liquid chromatography-atmospheric pressure photoionization-tandem mass spectrometry (UPLC-APPI-MS/M

254 Photoionization techniques (APPI and APLI) are important

255 mage induced by ionizing radiation; however, photoionization threshold energies of nucleic acid compo

256 ddition of single water molecules has on the photoionization time delays(7-9) of water clusters.

257 Isomer-selective photoionization time-of-flight mass spectrometry (PI-ReT

258 Tunable synchrotron-sourced photoionization time-of-flight mass spectrometry (PI-TOF

259 (NTD) in conjunction with thermal-desorption photoionization time-of-flight mass spectrometry (TD-PI-

260 approach utilizing "soft" vacuum ultraviolet photoionization to achieve unprecedented chemical charac

261 ncentration of PAHs desorbed and detected by photoionization ToF-MS to the concentration of PAHs adso

262 zed in the gas-phase by atmospheric pressure photoionization using a 10 eV vacuum ultraviolet krypton

263 nslational spectroscopy coupled with product photoionization using tunable VUV synchrotron radiation.

264 Vacuum ultraviolet photoionization (VUV-PI) mass spectrometry offers an iso

265 nization and desorption atmospheric pressure photoionization was examined for food and pharmaceutical

266 ere desorbed using Bi(3)(+) primary ions and photoionization was performed with a 157 nm (7.9 eV) exc

267 Atmospheric pressure photoionization was selected as the primary ionization m

268 X-ray photon energies needed for core-level photoionization were not available with attosecond table

269 re is monitored in time by using synchrotron-photoionization with a double-focusing mass spectrometer

270 of the neutral B(9) cluster using threshold photoionization with a tunable vacuum ultraviolet free e

271 Soft photoionization with tunable vacuum ultraviolet photons