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,Fe, Mn, Ni 0.1~2mg/L, 20ml
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,NH4-N, NO3-N, TP 0.1~10mg/L, 20ml
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Standard Solution of As,100μg/mL, matrix: 1% HNO3, 20ml
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Ammonia nitrogen standard substance in water,NH4-N 0.1~1mg/L, 20ml
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,F-, Cl-, SO42-, NO3-, 20ml
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Phosphate standard substances in water,PO43-–P 0.1~1.0mg/L, 20ml
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Quinoline yellow solution,1.00mg/mL matrix: water U=1.5%, 5ml
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Melamine standard solution of substance,1.00mg/mL matrix: 50% methanol U=1%, 5ml
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Gossypol solution,50μg/mL matrix: absolute ethanol U=2%, 10ml
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Ethyl 4-hydroxybenzoate,1.00mg/mL u=2% Matrix: methanol, 5ml
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Propyl 4-hydroxybenzoate standard solution,1.00mg/mL u=2% matrix: methanol, 5ml
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