Showing results (1-10 of 4) with videos related to
Sort By:
Pageof 1
Forensic Science|March 1, 1976
Evaluation of column extraction: a new procedure for the analysis of drugs in body fluidsJ Breiter, R Helger, H LangJournal of Clinical Chemistry and Clinical Biochemistry. Zeitschrift Fur Klinische Chemie Und Klinische Biochemie|April 1, 1977
Kinetic determination of glucose concentrations with glucose dehydrogenaseH Rindfrey, R Helger, H LangJournal of Clinical Chemistry and Clinical Biochemistry. Zeitschrift Fur Klinische Chemie Und Klinische Biochemie|September 1, 1977
[Thin layer chromatography screening test for semiquantitative detection of 4-hydroxy-3-methoxy mandelic acid (HMMA) in urine without extraction (author's transl)]R Knuppen, R Helger, F Kraffczyk, et al.Journal of Clinical Chemistry and Clinical Biochemistry. Zeitschrift Fur Klinische Chemie Und Klinische Biochemie|February 1, 1978
Thin layer chromatographic screening for methaqualone, phenothiazines, opiates and benzodiazepinesJ Breiter, R Helger, E Interschick, et al.Pageof 1