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สารละลายมาตรฐานความขุ่น 20 NTU
1 × ฿2,033.00
Subtotal: ฿2,033.00
Reagents for HI 3830 test kit (60 tests)
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Nitrate is reduced to nitrite in the presence of cadmium. The nitrite thus produced reacts with the reagent to yield an orange compound. The amount of color developed is proportional to the concentration of nitrate present in the aqueous sample.