Sigma-Aldrich
γ-Glutamyltranspeptidase from porcine kidney
Gly-Arg-Gly-Asp-Ser
Glycol chitosan
乙二醇壳聚糖
Kynurenic acid
犬尿喹啉酸
L-Lysine p-nitroanilide dihydrobromide
Lead
Iron
Molybdenum