Simultaneous high-performance liquid chromatographic determination of amino acids in a dried blood spot as a neonatal screening test

A SIMPLE PHENYLALANINE METHOD FOR DETECTING PHENYLKETONURIA IN LARGE POPULATIONS OF NEWBORN INFANTS

Robert Guthrie, Ada Susi · PEDIATRICS · 1963 · 2.2K citations

Medicine, Pediatrics, Early Detection +7

An ultra rapid and sensitive high-performance liquid chromatographic method for determination of tissue and plasma free amino acids

Theodor Graser, H. Godel, Sabine Albers et al. · Analytical Biochemistry · 1985 · 159 citations

Natural Sciences, Biochemistry, Analytical Chemistry +9

High-performance liquid chromatography and sensitive detection of amino acids derivatized with 7-fluoro-4-nitrobenzo-2-oxa-1,3-diazole

Yoshihiko Watanabe, Kazuhiro Imai · Analytical Biochemistry · 1981 · 143 citations

Natural Sciences, Chemistry, Analytical Chemistry +13

Sensitive detection of amino acids in human serum and dried blood disc of 3 mm diameter for diagnosis of inborn errors of metabolism

Yoshihiko Watanabe, Kazuhiro Imai · Journal of Chromatography B Biomedical Sciences and Applications · 1984 · 67 citations

Life Sciences, Biochemistry, Clinical Biochemistry +10

New automated amino acid analysis by HPLC precolumns derivatization with fluorenylmethyloxycarbonylchloride

Ingvar Betnér, Péter Földi · Chromatographia · 1986 · 56 citations

Natural Sciences, Chemistry, Analytical Chemistry +9