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O. P ‘- DDT solution,100μg/mL in Methanol, 1ml
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O. P ‘- DDT solution,50μg/mL in Methanol, 1ml
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O. P ‘- DDT solution,1000μg/mL in Acetonitrile, 1ml
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O. P ‘- DDT solution,100μg/mL in Acetonitrile, 1ml
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O. P ‘- DDT solution,5000μg/mL in Hexane, 1ml
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O. P ‘- DDT solution,1000μg/mL in Hexane, 1ml
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O. P ‘- DDT solution,200μg/mL in Hexane, 1ml
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O. P ‘- DDT solution,100μg/mL in Hexane, 1ml
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O. P ‘- DDT solution,58.9μg/mL in Hexane, 1ml
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Standard solution for zinc sulfate volumetric analysis,0.2021mol/L medium: H2O, 500ml
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Standard solution for zinc sulfate volumetric analysis,0.1005mol/L medium: H2O, 500ml
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