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Cs solution,1000ug/ml, 1.0 mol/L HNO3, 100ml
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Cs solution,1000ug/ml, 1.0 mol/L HNO3, 50ml
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3，3’，4，4′-Tetrachloro-1，1′-bi
phenyl,97%, 100mg
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3，3’，4，4′-Tetrachloro-1，1′-bi
phenyl,97%, 250mg
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3，3’，4，4′-Tetrachloro-1，1′-bi
phenyl,97%, 1g
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2，4，6-Tris(2-pyridyl)-s-triazine,For spectrophotometric determination of Fe, ≥99% (HPLC), 5g
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2，4，6-Tris(2-pyridyl)-s-triazine,For spectrophotometric determination of Fe, ≥99% (HPLC), 25g
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4-Aminoantipyrine,Used to determine the spectrophotometry of H2O2 and phenol, ≥98%, 25g
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4-Aminoantipyrine,Used to determine the spectrophotometry of H2O2 and phenol, ≥98%, 100g
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4-Aminoantipyrine,Used to determine the spectrophotometry of H2O2 and phenol, ≥98%, 500g
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4-Aminoantipyrine,Used to determine the spectrophotometry of H2O2 and phenol, ≥98%, 5g
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