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First Standard® 甲苯中氟硅菊酯溶液,100μg/mL
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甲苯中氯菊酯溶液,1000μg/mL 广电计量
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First Standard® 苄呋菊酯
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苄呋菊酯(灭虫菊) BePure-25435YA
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First Standard® 甲苯中氟吡草胺溶液,1000μg/mL
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First Standard® 甲苯中2甲4氯溶液, 1000μg/mL
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First Standard® 甲苯中苯噻硫氰溶液,1000μg/mL
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First Standard® 乙腈/甲苯中蒽醌溶液, 1000μg/mL
anthraquinone Solution in Acetonitrile/Toluene ,1000μg/mLFirst Standard®天津
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First Standard® 甲苯中4, 4’-滴滴伊溶液, 1000μg/mL
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First Standard® 甲苯中三氯杀虫酯溶液,1000μg/mL
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