Thiamethoxam, 100µg/mL in Acetonitrile, 1ml

Tribenzo[de,h,kl]naphtho[1,2,3,4-rst]pentaphene

PCB Isomer Standard “Dutch 7”, 10µg/ml in Isooctane, 1ml

VOC Mix B, 2000ug/ml in MeOH, 1ml