Beryllium (Be)

3-Methylphenol, 100 µg/ml, Acetonitrile, 1ml

4-Methyl-2,2',5,5'-tetrachlorodiphenylmethane

n-C17/(n-C17 + n-C27) (Integration control) 2000 µg + 500 µg in isooctane solution in 1mL isooctane n-Heptadecane/n-Heptacosane = 4:1