Assay Kits

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  • Cayman’s Nitrate/Nitrite Fluorometric Assay provides a convenient method for the quantitation of low levels of nitrate and nitrite in biological samples (particularly tissue culture medium). Previously undetectable concentrations of nitrate/nitrite in a variety of samples can be accurately…

  • Cayman’s Acid Phosphatase Assay provides a convenient method for detecting AP activity in plasma, serum, urine, and semen. The assay utilizes para-nitrophenyl phosphate (pNPP) as a chromogenic substrate for the enzyme. In the first step, AP dephosphorylates pNPP. In the second step, the…

  • Creatinine is commonly measured in urine and is a key benchmark for the normalization of a variety of urinary biomarkers. Serum creatinine levels, however, are a useful indicator of renal function and abnormal levels have been implicated in diabetes, cardiovascular, and circulatory diseases.…

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