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Folic Acid ELISA Kit

Catalog Number: MET-5068, MET-5068-5
Detection sensitivity limit of 24 pg/mL Suitable for use with plasma, serum, and lysates Folic acid standard included   Video: Color Development in an ELISA

Zinc Assay Kit (Colorimetric)

Catalog Number: MET-5138
Detect zinc concentrations as low as ~0.4µM Suitable for serum, plasma, urine, cerebrospinal fluid, and cell or tissue lysates Zinc standard included

Tryptophan Assay Kit

Catalog Number: MET-5177
Detection sensitivity limit of approximately 1.6 µM Tryptophan Suitable for use with lysates, serum, plasma, urine and culture supernatants L-Tryptophan standard included NOTE: Each sample replicate requires 2 assays for proper data calculation.