2,2,3,4,4,5,5-Heptachlorobiphenyl,180

Concentration calibration standard

2-Methylthio-3-methyl- and 2-methylthio-5-methylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

ISO 9377-2MOD Extraction solvent standard solution Dilute of "extraction solvent stock solution" (S-4415) 10 times with the extracting solvent (n-pentane) 1,5,10x50mL Use 50mL of extraction solvent standard solution pr. experiment