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Tracemetals in drinking water (Varied Conc in 2% HNO3+Tr HF)
二嗪农甲醇溶液标准物质
Nicotine Related Compound D (3-(4,5-dihydro-3H-pyrrol-2-yl)pyridine fumarate)标准品
TERBUTYLAZINE-2-HYDROXY PESTANAL, 250 MG 标准品
p-Fluorobenzoic Acid
PCB No. 119,neat 标准品
(办证) Dichlorprop-methyl ester D6 (ring D3, 3,3,3-D3),100ng/ul 标准品
Additions to Method 8270 标准品
2-Butanone-4,4,4-d3 标准品
丙烯菊酯溶液,100ppm