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(K,Na) multi-element mixed standard solution (mixed standard),100μg/ml,in water
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联苯标准溶液,92-52-4,analytical standard,10ug/ml in methanol
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杀虫环标准溶液,31895-22-4,analytical standard,10ug/ml in methanol
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倍硫磷标准溶液,55-38-9,analytical standard,100ug/ml in acetone,u=4%,
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三氯杀螨醇标准溶液,115-32-2,analytical standard,100ug/ml in petroleum ether
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甲基胺 (40% solution in water) for synthesis
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羟基铵 (50% solution in water) for synthesis
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羟基铵 (50% solution in water) for synthesis
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甲基胺 (40% solution in water) for synthesis
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甘醇酸 (70% solution in water) for synthesis
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