High-performance liquid chromatographic determination of hydroxyproline after derivatization with 4-dimethylaminoazobenzene-4'-sulphonyl chloride

Use of a mixture of proteinase-free collagenases for the specific assay of radioactive collagen in the presence of other proteins

Beverly Peterkofsky, Robert F. Diegelmann · Biochemistry · 1971 · 1.4K citations

Life Sciences, Biochemistry, Clinical Biochemistry +7

The Biosynthesis of Collagen and Its Disorders

Darwin J. Prockop, Kari I. Kivirikko, Leena Tuderman et al. · New England Journal of Medicine · 1979 · 1.1K citations

Life Sciences, Biochemistry, Molecular Biology +14

A specific method for the analysis of hydroxyproline in tissues and urine

Darwin J. Prockop, Sidney Udenfriend · Analytical Biochemistry · 1960 · 1.1K citations

Life Sciences, Biochemistry, Clinical Biochemistry +3

Modified procedure for the assay of H3- or C14-labeled hydroxyproline

Kale Juva, Darwin J. Prockop · Analytical Biochemistry · 1966 · 704 citations

Life Sciences, Biochemistry, Clinical Biochemistry +3

Chromophoric labeling of amino acids with 4-dimethylaminoazobenzene-4'-sulfonyl chloride

Jen‐Kun Lin, Jui‐Yoa Chang · Analytical Chemistry · 1975 · 170 citations

Natural Sciences, Chemistry, Analytical Chemistry +7