1,2,3,7,8-PENTACHLORODIBENZO-P-DIOXIN (13C12, 99%) …

US EPA METHOD 23 "STARTER KIT"…

STANDARD FOR EPA METHOD 8280 CC1…

METHOD 8280 INTERNAL STANDARD SOLUTION (13C12, 99%)…

EXTRACTION STD FOR EN-1948-2 (13C12, 99%)…

M1613 DAILY CALIBRATION + WINDOW DEFINER & ISOMER S…

INTERNAL STANDARD DIOXIN, FURAN, & PCB IN TISSUE IN…

RECOVERY STANDARD DIOXIN, FURAN, & PCB IN TISSUE IN…

PCDD/PCDF WINDOW DEFINING AND ISOMER SPECIFICITY SO…

NATIVE STOCK RESPONSE FACTOR SOLUTION FOR EN-1948-2…