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First Standard® 乙腈中丰索磷砜溶液,1000μg/mL
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NCS190010 标样/菠菜粉中甲拌磷、对硫磷、杀螟硫磷分析质控样品
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甲拌磷亚砜
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氧甲拌磷
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First Standard® 乙腈中甲拌磷砜溶液, 100μg/mL
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First Standard® 丙酮中甲基乙拌磷砜溶液,100μg/mL
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36种有机磷类农药混标, 100ppm(2015药典2341通则)
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甲醇中异氯磷溶液,2463-84-5,1000μg/mL in Methanol,不确定度2%
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甲醇中苯线磷砜溶液 广电计量
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