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        Lithium bromide standard solution
        Bromocresol green label solution
        0.1% bromocresol green ethanol solution 100ml
        Bromocresol violet ethanol 0.016 500ml
        Bromine valency oil standard liquid 1gBr 100ml
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        Sodium bisulfite standard solution 0.5 mol/l 50ml
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        COD kit 4 pcs/set
        P-chlorophenyl fluorone AR 1g
        5-Bromo-PADAP AR 1g
        Fulgen's dye liquor -45 ℃ 6kg
        Amino C acid chlorophosphonazo AR 1g
        Zinc citrate AR 500g
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