EPA Method 525 - Perchlorinates

ISO 17495 Internal Standard Stock Solution 2 Internal standards, each 10µg/mL in acetone; unit: 1x5mL 2061.6 2,4-Dibromophenol [615-58-7] 2060.6 2,4,6-Tribromophenol [118-79-6] The following compounds are suggested as alternative I

2,3,4-Tribromodibenzofuran, 1.2ml x 50ug/ml, toluene

Anion Mix #4