1.Study on quantative analysis of diosgenine in some species of the branch Dioscorea L. by gas chromatography
Pharmaceutical Journal 1999;274(2):21-22
The content of diosgenine in some species of dioscorea branch is determined by gas chromatography. This method is convenient and high confidence. Some species contain substantial diosgenine for production. This method can be applied for controlling the material in production.
Pharmaceutical Preparations
;
Chromatography, Gas
4.Contribution to the study on application of gas chromatography in dosage of diosgenine
Pharmaceutical Journal 2000;291(7):14-15
Diosgennin has been analyzed by gas chromatography with glass column that was silanated at high temperature. The method has got less than 3 per-cents of error. This method was introduced in practical production of pharmaceutical industry.
Chromatography, Gas
;
Diosgenin
;
Pharmaceutical Preparations
8.A Multiplex Phytosterol Assay Utilizing Gas Chromatography-Mass Spectrometry for Diagnosis of Inherited Lipid Storage Disorders
Joon Hee LEE ; Kyunghoon LEE ; Sun Hee JUN ; Sang Hoon SONG ; Choong Ho SHIN ; Junghan SONG
Annals of Laboratory Medicine 2019;39(4):411-413
No abstract available.
Diagnosis
;
Gas Chromatography-Mass Spectrometry
9.A simple method for the determination of bioethanol from lignocellulosic materials using gas chromatography-flame ionisation detector (GC-FID)
Mona Fatin Syazwanee Mohamed Ghazali ; Muskhazli Mustafa ; Nur Ain Izzati Mohd Zainudin ; Nor Azwady Abd Aziz
Malaysian Journal of Microbiology 2022;18(1):123-127
Aims:
The utilisation of lignocellulosic biomass for bioethanol production reduces the dependency on fossil fuels as a source of energy and emission of greenhouse gas (GHG). However, studies in this emerging field are hampered by the cost of ethanol quantification methods. Due to the volatile nature of ethanol, the method for the quantification of bioethanol production should be reproducible and rapid to avoid any evaporation loss to the surroundings. Therefore, this study aimed to develop a simple, rapid and precise bioethanol quantification method using a gas chromatographyflame ionisation detector (GC-FID) without having to go through distillation process for ethanol purification.
Methodology and results:
The bioethanol was produced via consolidated bioprocessing (CBP) using Trichoderma asperellum B1581 and paddy straw. The peak corresponding to ethanol was obtained at 2.347 min with a peak area of 189.66, equating to 0.159% (v/v) or 1.25 g/L ethanol. A comparison between the quantity of ethanol detected by GC-FID and spectrophotometric analysis (340 nm) showed no significant difference (p>0.05) in the amount of ethanol detected by GC analysis, thus validating the accuracy of the GC method.
Conclusion, significance and impact of study
This work presents a simple, precise and reliable method to determine the amount of bioethanol in the sample using a GC-FID. Currently, there are many GC-FID methods available for the determination of ethanol/alcohol in a human blood samples or in beverages but not in bioethanol samples. Thus, this method was developed to facilitate the determination of bioethanol in the samples produced from lignocellulosic materials.
Chromatography, Gas
;
Flame Ionization
;
Ethanol
10.Quantitative analysis of endogenous steroids in human urine by using gas chromatography-mass spectrometry.
Hyun Gyung JANG ; Khee Dong EOM ; Young Sook YOO ; Bong Chul CHUNG ; Jongsei PARK
Journal of Korean Society of Endocrinology 1991;6(3):238-244
No abstract available.
Gas Chromatography-Mass Spectrometry*
;
Humans*
;
Steroids*
Result Analysis
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