For quantitative determination of maltose and evaluation of drug effects on its metabolism. Key Features: Fast and sensitive. Use of 10 µ L sample. Linear detection range 2 to 500 µ M maltose for colorimetric assays and 1 to 50 µ M for flourimetric assays. Convenient. The procedure involves adding a single working reagent, and reading the absorbance after 60 minutes. Room temperature assay. No 37° C heater is needed. High-throughput. "Add-mix-read" type assay. Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Method: OD570nm, or FL530/585nm. Samples: Serum, urine, food and beverages, etc. Species: All. Procedure: Assay takes 60 min. Kit size: 100 tests. Detection limit: 2 µ M.