Description_x000D_ General description_x000D_ Griess reagent is based on Griess reaction. The components include naphthylethylenediamine dihydrochloride suspended in water and sulphanilamide in phosphoric acid. This reagent reacts with nitrite in samples to form a purple azo product, absorbance of which is measured at 546 nm._x000D_ Application_x000D_ Griess reagent (modified) has been used:_x000D_ • in the nitrite assay of primary spinal cord glial cells stimulated with supernatant of damaged sensory neuron (SDSN)_x000D_ • for measuring nitrite/nitrate oxidized from nitric oxide in stimulated chondrocytes_x000D_ • for measuring nitric oxide (NO) degradation in RAW264.7 macrophage cells_x000D_ Packaging_x000D_ 10 g in poly bottle