Ando T, Hasegawa Y and Uchiyama M (1986) Separation of lepidopterous sex-pheromones by reversed-phase thin-layer chromatography and high-performance liquid-chromatography. Agricultural and Biological Chemistry 50: 2935. Bertsch WS, Hara S, Kaiser RE and Zlatkis A (eds) (1987) Instrumental HPTLC. Heidelberg: HuK tig. Cammaerts-Tricot M-C, Morgan ED and Tyler RC (1977) Isolation of the trail pher...

Gas chromatography-mass spectroscopy (GC-MS) is one of the so-called hyphenated analytical techniques. As the name implies, it is actually two techniques that are combined to form a single method of analyzing mixtures of chemicals. Gas chromatography separates the components of a mixture and mass spectroscopy characterizes each of the components individually. By combining the two techniques, an...

Disopyramide is determined in serum by gas chromatography with a nitrogen-selective detector, by liquid chromatography, and by gas chromatography--mass spectrometry. Comparable results are obtained with the three techniques, with a within-run and between-run precision of 5 to 10% (coefficient of variation). Least-squares analysis of data on patients' sera, analyzed first by gas chromatography (...

carbon disulfide is used predominantly in the manufacture. it has affects the nervous system. in this study, the applicability of spme as a passive sampler for determination of carbon disulphide in air was studied. effect of sampler and environmental parameters on uptake of carbon disulphide was studied as well. four fibers were tested to select the best sampler for determine carbon disulfide i...

objectives the link between dietary fat and heart disease has been established for decades. although, the atherogenic effect of saturated fatty acids is somehow controversial, the cardioprotective effects of polyunsaturated fatty acids (pufa) are clearly documented. this study investigated the effects of different dietary oils on serum fatty acid composition in rat. methods six week male wistar...

thermal decomposition of two coal samples obtained from top seam sibi (tss) and sore range quetta (srq) coal fields in their raw and acid washed forms were carried out in an open type tubular pyrolyzer coupled to a gas chromatograph with fid. elemental analyses were carried out with scanning electron microscope-energy dispersive x-rays (sem-edx) analyzer. effect of inherent mineral contents on ...

background: cocaine poisoning is known for causing severe clinical effects such as tachycardia, hypertension, agitation and confusion. absence of clinical manifestations in cocaine poisoning is unusual. case report: a 26-year old man, known to be a cocaine addict, declared that he was forced by cocaine dealers to swallow many tablets of cocaine, six hours prior to admission to emergency departm...

New York: John Wiley. Grob RL (ed.) (1995) Modern Practice of Gas Chromatography, 3rd edn. New York: John Wiley. Heftmann E (ed.) (1992)Chromatography, 5th edn. Part B: Applications. (Journal of ChromatographyLibrary, Vol. 51B). Amsterdam: Elsevier. Hyver KJ and Sandra P (eds) (1989) High Resolution Gas Chromatography, 3rd edn. Delaware: Hewlett-Packard. Kataoka H (1996) Derivatization reaction...

acids and peptides due to the manifold separation modes that can be applied. Short analysis times, easy manipulation of separation conditions and small injection volumes (nanolitres) are further advantages. The Reld of biomedical and clinical amino acid and peptide analysis is still under investigation, especially as the transfer and adaptation of the separation modes to a broader range of real...