Tripterygium wilfordii (Hook. f.) is a woody vine of the Celastraceae family, and native to China (south of the Yangtze River), Korea, and Japan, is used in the clinic for the treatment of inflammatory and autoimmune diseases, especially rheumatoid arthritis. In this study, we developed a urine metabolomic method by gas chromatographymass spectrometry (GC-MS) to evaluate the effect of Tripteryg...

During barrel maturation, the volatile compounds extracted from oak wood can contribute to a wine’s overall aroma and flavour, enhancing its character and complexity. However, barrels have a finite pool of extractable material and the amounts of oak derived volatile compounds available for extraction diminish over time. As a consequence, barrels are typically decommissioned after five to six ye...

Partially coalified, structurally intact latex fibers found in a low rank coal were characterized by analytical methods. The latex fibers have a high sulfur content of approximately 10 percent. It has been proposed in previous studies, and it appears to be the case here, that the latex material has been “naturally” vulcanized during the early diagenetic period. Two fossilized latex samples reco...

The essential oil from the aerial parts of Iranian and British Thymus vulgaris L. were obtained by hydro distillation and analyzed by gas chromatography (GC) and gas chromatographymass spectrometry (GC-MS). Forty two components were identified in the Iranian Th. vulgaris essential oil that represented 99.06% of the oils. The major components were thymol (60.54%), γTerpinene (9.47%), p-cymene (8...

Drcarboxylic aciduria is a condition sometimes encountered during routine urine screening for inborn errors of metabolism [l] and may be due to ketosrs, a transient condition m some neonates [2] or a number of enzyme deficiencies mainly involving fatty acid metabolism or transport. Unsaturated dicarboxylic acids have also been reported m some of these conditions. These compounds are usually det...

Rhanterium epapposum, native to the Arabian Peninsula, is traditionally used cure skin infections. The objective screen phytochemical content and antimicrobial activity of aqueous, methanol 80% extracts aerial parts R. epapposum. screening methanolic, epapposum was conducted using gas chromatographymass spectrometry. activities were assessed by well diffusion microdilution methods. Qualitative ...

Present study aims the optimisation and validation of the extraction procedures for the determination of polycyclic aromatic hydrocarbons (PAHs) in sediment samples. As analytical techniques, gas chromatographymass detector (GC-MS) and gas chromatography-flame ionization detector (GC-FID). The optimized methods were soxhlet extraction, ultrasonic bath extraction and solid phase micro extraction...

Purpose: To establish an efficient method to recycle natural borneol from Cinnamomum camphor chvar. Borneol oil residue. Methods: The fractions and raffinate of the oil residue of Cinnamomum camphor chvar. Borneol were obtained by fractional distillation, and analyzed by gas chromatography with flame ionization detector (GC-FID) and gas chromatographymass spectrometry (GC-MS). Natural borneol w...