… Levo-α-acetylmethadol hydrochloride was kindly provided by Siegfried (Zofingen, Switzerland).
Levo-α-acetylnormethadol hydrochloride and levo-α-acetyldinormethadol hydrochloride …

… Gas chromatographic (GC) methods were established since the end of the last century,
whereas liquid chromatographic methods were more recently developed and are gaining …

… They also thank David Moody, PhD, of the Center for Human Toxicology, Salt Lake City,
for supervising the gas chromatography/mass spectrometry analyses and for his review and …

… Gas-liquid chromatographic (GLC) analysis of AM and MOL in urine was achieved with 3%
XE-60 and a flame ionization detector. NAM and NNAM were analyzed after conversion to …

… of levo and Cl-ami from plasma were calculated by comparison with the direct injection of
the analytes to the gas chromatograph. … of salts, triglycerides, and α-acid glycoprotein did not …

… This study examined the pyrolysis behavior of levoglucosan, … Gas chromatography (GC) was
carried out on a Shimadzu … 170C and reported the structure to have an α/β ratio of 2 : 1, with …

… glycosides (methyl α- and β-d… gas collecting apparatus attached to the ampoule according
to the previous paper [9]. The non-condensable gases were analyzed by gas chromatography …

… chromatography-tandem mass spectrometry (LC–MS/MS) method for the separation and
quantitative determination of dextro- (DXM) and levo… of dextro- and levo-methorphan, as well as …

… gas chromatography coupled to time-of-flight mass spectrometry. Among five commercially
available SPME fibres tested for proper sample preparation procedure, divinylbenzene/…

… for the determination of ethinylestradiol and levo-norgestrel in a … Retention time for levo-norgestrel
and ethinylestradiol was … gas chromatography/negative chemical ionisation mass …