For determination of inosine concentration in cell lysate, serum, and other biological samples. Sensitive and accurate. Use as little as 20 μL of sample. Linear detection range in 96-well plate for 30-minute incubation with 1 to 25 µ M. Simple and convenient. The procedure involves addition of a single working reagent and incubation for 30 min at room temperature. Fast and high-throughput. Assays using 96-well plates and liquid handling system could allow simultaneous processing tens of thousands of samples per day. Method: FL530/585nm; Samples: Biological samples; Procedures: 30 min; Size: 100 tests in 96-well plate