PCDD/PCDF WINDOW DEFINING AND ISOMER SPECIFICITY SO…

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

EN-1948 CALIBRATION SOLUTIONS (UNLABELED/13C12, 99%…

US EPA METHOD 8290 SAMPLE FORTIFICATION SOLUTION (1…

US EPA METHOD 8290 CALIBRATION SOLUTION HRCC1-HRCC5…

US EPA METHOD 8290 MATRIX SPIKING SOLUTION UNLABELE…

NON-2,3,7,8-CONTAINING PCDF CLEAN-UP STANDARD (13C1…

NON-2,3,7,8-CONTAINING PCDF SAMPLING STANDARD (13C1…

POLYBROMINATED DIOXIN AND FURAN MIXTURE UNLABELED …

1,3,6,8-TCDD/F CONTAINING CLEAN-UP SPIKE (13C12, 99…