Zinc-Protoporphyrin HPLC
Zinc, colorimetric
IDK®
Vitamin C, colorimetricID-Vit®
Vitamin B6 direct MTP assayVitamin B6 (Pyridoxal-5-Phosphate) HPLC
Vitamin B6 (Pyridoxal-5-Phosphate) HPLC
ID-Vit®
Vitamin B2 (Riboflavin) (Serum) direct MTP assayID-Vit®
Vitamin B1 (Thiamine) direct MTP assayIDK®
Vitamin B1 & B6 LC-MS/MSIDK®
Vitamin A & E LC-MS/MSIDK®
Tryptophan high sensitive ELISAIDK®
Tryptophan (Stool) ELISAIDK®
Tryptophan (EDTA plasma, serum, dried blood) ELISAThiol-Status (Sulfhydryl-Status Test), photometric
IDK®
Serotonin (Stool) ELISA