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1，3-Dichloropropane solution,1000μg/ml in methanol, 1.2ml

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1，3-Dichloropropane solution,2000μg/ml in methanol, 1ml

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3，3′-Dimethoxybenzidine solution,1000μg/ml in Methanol, 1ml

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2，4，6-Trichlorophenol solution,2.00mg/ml, matrix: methanol, 1ml

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Copper sulfate standard solution,0.01500mol/L(0.015M), 500ml

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Fluorobenzene solution,2000μg/ml in Methanol, 1ml

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Fluorobenzene solution,4000μg/ml in Methanol, 1ml

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Water quality nitrite nitrogen (standard sample),10μg/mL in H2O (calculated as nitrogen), 20ml

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Water quality nitrite nitrogen (standard sample),8.32μg/mL in H2O (calculated as nitrogen), 20ml

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Water quality nitrite nitrogen (standard sample),8.0μg/mL in H2O (calculated as nitrogen), 20ml

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Water quality nitrite nitrogen (standard sample),6.5μg/mL in H2O (calculated as nitrogen), 20ml

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Water quality nitrite nitrogen (standard sample),5.26μg/mL in H2O (calculated as nitrogen), 20ml

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