p, p’-DDE标准溶液V32632 · CAS 72-55-9
分析标准品, 10μg/ml in petroleum ether
分析标准品, 10μg/ml in petroleum ether
50.0ug/mL in Toluene:Methanol(volume ratio 1:4)
分析标准品, 50ug/mL in 2,2,4-Trimethylpentane
1000ug/ml in Purge and Trap Methanol
分析标准品, 10ug/ml in hexane
1000ug/ml in Purge and Trap Methanol
分析标准品
100mg/L于甲苯:己烷 1:1
≥99.94 atom% D
100 ug/mL in Isooctane

Standard for GC, ≥99.5%(GC)
1000ug/ml in Purge and Trap Methanol
分析标准品
35 ug/mL in Isooctane
100 ug/mL in Isooctane
分析标准品
100 ug/mL in Isooctane
10μg/g
100 ug/mL in Isooctane
100 ug/mL in Isooctane
35 μg/mL 异辛烷溶液
100ug/mL in Isooctane
100 ug/mL in Isooctane