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硝酸根离子(NO₃-)标准溶液,500ug/ml in Water (20℃)
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硝酸盐氮标准溶液,500ug/ml in Water (20℃)
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4-甲酚标准溶液,106-44-5,500ug/ml in Methanol
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Pribolab®U-[13C22]-土霉素Oxytetracyline- 2.5μg/ml-干态标准品*5
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对硝基苯酚标准溶液,100-02-7,analytical standard,500ug/ml in methanol
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乙酰苯胺标准品 test substance for elementary analysis
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Micro cuvettes with frosted thick wall; cover top; glass; 0.7 mL capacity, 2/pack
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Micro cuvettes with frosted thick wall; cover top; quartz; 0.7 mL capacity, 2/pack
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mix-64种半有机挥发物混标标准品 BW30877XD-1mL
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Disposable polypropylene test/culture tubes, 35 mL
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