Research on Gas Chromatography-Mass Spectrometer Method Measuring Corrosive Sulfur in Mineral Insulating Oil

Accurate quantitation and characterization of organometals are successfully achieved by splitting the gas chromatography (GC) flow to both an electron ionization mass spectrometer (EIMS) and an inductively coupled plasma mass spectrometer (ICPMS).

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On the applicability of comprehensive two-dimensional gas chromatography combined with a fast-scanning quadrupole mass spectrometer for untargeted large-scale metabolomics

Journal of Chromatography A ◽

10.1016/j.chroma.2015.04.011 ◽

2015 ◽

Vol 1405 ◽

pp. 156-167 ◽

Cited By ~ 31

Author(s):

Christoph H. Weinert ◽

Björn Egert ◽

Sabine E. Kulling

Keyword(s):

Gas Chromatography ◽

Mass Spectrometer ◽

Large Scale ◽

Quadrupole Mass Spectrometer ◽

Two Dimensional ◽

Quadrupole Mass

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A STUDY ON CARBON ISOTOPE OF CO2 AND CH4 IN WESTERN DIENG PLATEU BY GAS CHROMATOGRAPHY- ISOTOPE RATIO MASS SPECTROMETER (GC-IRMS)

Indonesian Journal of Chemistry ◽

10.22146/ijc.21832 ◽

2010 ◽

Vol 5 (1) ◽

pp. 11-14

Author(s):

Hanik Humaida

Keyword(s):

Gas Chromatography ◽

Carbon Isotope ◽

Mass Spectrometer ◽

Isotope Ratio ◽

Isotope Analysis ◽

Ionization Detector ◽

Volcanic Gas ◽

Porapak Q ◽

Flame Ionization ◽

Isotope Ratio Mass Spectrometer

The carbon isotope can be used to evaluate volcanism phenomenon of volcano. The study of carbon isotope of CO2 and CH4 was carried out in western Dieng Plateau by mass-spectrometer. Before analysis, sampel was separated by gas chromatography using a Porapak-Q column and a FID (Flame Ionization Detector) detector. The gas was oxidized by copper oxide at 850oC before being ionized in mass-spectrometer for isotope analysis. The CO2 content in Candradimuka crater (-4.10 O/OO), indicated that the gas may be as volcanic gas. The other CO2 from Sumber and western Gua Jimat, had isotope value of -10.05 and -12.07 O/OO, respectively, indicating contamination from crustal and subduction material. The carbon isotope of CH4 gas from Pancasan village was -63.42 O/OO, that may be categorized as biogenic gas. Keywords: isotope, CO2, CH4, Dieng.

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DISTRIBUTION AND COMPOSITION OF THE MAIN ACTIVE COMPONENTS FOUND IN STINGLESS BEE PROPOLIS FROM VARIOUS REGIONS IN INDONESIA

International Journal of Pharmacy and Pharmaceutical Sciences ◽

10.22159/ijpps.2021v13i2.39521 ◽

2021 ◽

pp. 44-49

Author(s):

MAHANI ◽

MICHELLE ◽

YANA CAHYANA ◽

AHMAD SULAEMAN ◽

HARDINSYAH ◽

...

Keyword(s):

Gas Chromatography ◽

Mass Spectrometer ◽

Active Component ◽

Average Concentration ◽

Stingless Bee ◽

Plant Origin ◽

Active Components ◽

Components Analysis

Objective: The aim of this study is to map out the distribution and composition of the main active components found in stingless bee propolis from various regions in Indonesia. Methods: The stingless bee propolis used was obtained from ten different provinces in Indonesia and the active components analysis using Gas Chromatography-Mass Spectrometer (GC-MS) pyrolyzer. Results: This study found 85 main types of active components with concentrations of ≥ 1%. The most frequently found active component was alpha-d-glucopyranoside, which had an average concentration of 28.20%. Conclusion: There were differences between the main active components found in 14 samples of stingless bee propolis obtained from 10 provinces in Indonesia, which was due to the variety of bee species and plant origin.

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