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异丙隆溶液 标准品
12种农残混标 BePure-33430XM-d
丙酮中DEET溶液
Methoprene (TM) Solution 1000ug/ml in t-Butylmethyl ether
定制混标42 标准品
Styrene (d8) Solution 100ug/ml in n-Nonane
delta-HCH D6 100 ?g/mL in Cyclohexane
32种农残混标 BePure-33217XZ-a
3-(Aminocarbonyl)-1,6-dimethyl-pyridinium-d3 Iodide
乙硫苯威