Direct Measurement of Aromatic Compounds in Aqueous Solution by Laser Ionization/Time-of-Flight Mass Spectrometry

Tokumoto, Goro; Saburi, Hiroaki; Miyagawa, Shinobu; Uchimura, Tomohiro

doi:10.2116/bunsekikagaku.62.595

Cited by 4 publications

(9 citation statements)

References 3 publications

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“…The delay time for oscillation from the vaporization laser to the ionization laser was set to be 5 μs. The delay time was adjusted based on a previous report, 14 where the delay time at which the strong signal intensity was observed was 7 to 12 μs when the distance between an inlet nozzle and an ionization region was set at 2 mm. The speed of the molecules was calculated to be ca.…”

Section: Apparatusmentioning

confidence: 99%

“…12,13 Recently, we reported on the use of vaporization and subsequent ionization techniques for measuring of a liquid sample without using a frit. 14,15 Volatile compounds in aqueous solution are usually detected online. 14 In that report, we irradiated a pulsed laser for vaporization to an inlet nozzle, and analyte molecules could be partially introduced in a pulsed form.…”

Section: Introductionmentioning

confidence: 99%

“…14,15 Volatile compounds in aqueous solution are usually detected online. 14 In that report, we irradiated a pulsed laser for vaporization to an inlet nozzle, and analyte molecules could be partially introduced in a pulsed form. Therefore, a signal enhancement was achieved, albeit a slight one.…”

Section: Introductionmentioning

confidence: 99%

“…14 In the present study, the effect of a vaporization laser was studied for the detection of Taiwanin A. Figure 3 shows the mass spectrum obtained by measuring a Taiwanin A solution (10 ng/μL) by MPI-TOFMS combined with laser vaporization.…”

Section: Sample Introduction Using a Pulsed Laser For Vaporizationmentioning

confidence: 99%

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Multiphoton Ionization Time-of-Flight Mass Spectrometry for the Detection of Bioactive Lignan

et al. 2016

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Multiphoton ionization time-of-flight mass spectrometry (MPI-TOFMS) combined with a pulsed laser for sample vaporization was developed for the detection of a low-volatile compound in a solution. A solution containing Taiwanin A ((3E,4E)-3,4-bis(1,3-benzodioxol-5-ylmethylene)dihydro-2(3H)-furanone), which is a lignan that has an anticancer effect, was employed in the present study. Consequently, Taiwanin A could be detected by irradiating a laser pulse for vaporization to an inlet nozzle, rather than by heating. Therefore, the present method could be effective for detecting compounds with lower volatilities in a liquid sample.

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Section: Apparatusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Sample Introduction Using a Pulsed Laser For Vaporizationmentioning

confidence: 99%

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Multiphoton Ionization Time-of-Flight Mass Spectrometry for the Detection of Bioactive Lignan

et al. 2016

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“…In that report, an oven for a gas chromatograph (GC) was used to gradually heat samples, and benzene was detected as the main product along with several organic compounds. In addition, we also applied LI-TOFMS to the measurement of liquid samples, 34,35 including emulsions. [36][37][38][39] In the present study, we treated TiO2 nanoparticles with PTES and prepared slurry samples where PTES either remained or was removed by washing.…”

Section: Introductionmentioning

confidence: 99%

Application of Laser Ionization Time-of-Flight Mass Spectrometry for the Direct Measurement of a Silane Coupling Agent in Slurries

Fujii

Uchimura

2017

ANAL. SCI.

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Laser ionization time-of-flight mass spectrometry (LI-TOFMS) was applied to the direct measurement of a silane coupling agent in slurries. In the present study, a slurry with dispersed TiO2 nanoparticles treated with phenyltriethoxysilane (PTES) was prepared. As a result, the peaks for PTES could be observed from the slurry sample containing unreacted PTES, and no peaks were observed from the slurry sample where unreacted PTES was removed by washing. This method can be used to directly analyze surface coating agents, such as PTES in slurries, and would be useful for obtaining a direct understanding of the characteristics of slurries.

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Laser ionization/time-of-flight mass spectrometry for the direct analysis of emulsions

2014

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Direct Measurement of Aromatic Compounds in Aqueous Solution by Laser Ionization/Time-of-Flight Mass Spectrometry

Cited by 4 publications

References 3 publications

Multiphoton Ionization Time-of-Flight Mass Spectrometry for the Detection of Bioactive Lignan

Multiphoton Ionization Time-of-Flight Mass Spectrometry for the Detection of Bioactive Lignan

Application of Laser Ionization Time-of-Flight Mass Spectrometry for the Direct Measurement of a Silane Coupling Agent in Slurries

Laser ionization/time-of-flight mass spectrometry for the direct analysis of emulsions

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