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石油类正己烷(32.2ug/ml)标准品 BQC2910180351
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去草净标准溶液,886-50-0,1000ug/ml in Purge and Trap Methanol
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钠标准溶液,7440-23-5,100ug/ml in 1%HCl
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β-六六六标准溶液,319-85-7,analytical standard,50ug/ml in methanol
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p, p’-DDE标准溶液,72-55-9,50.0ug/mL in Toluene:Methanol(volume ratio 1:4)
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CoorsTek 65578 High-Alumina Rectangular Tray, 32 mL, 75 x 50 x 8 mm; 1/Pk
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100ug/ml标准品 BePure-36600XH-pcb
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100ug/ml标准品 BePure-36600XC-pest
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1000ug/ml标准品 BePure-36600YZ-pest
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mix-64种半有机挥发物混标标准品 BW30877XD-1mL
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