Chromium (Cr), 1µg/ml in 2%-HNO3 / Water, 100ml

CONOSTAN 1000ppm Standard, Ce, 50g

Complex Cyanide (CN-), 1000µg/ml in Tr. NaOH / Water, 100ml

Method 200.8/1638/1640 Internal Standard, 10µg/ml in 2%-HNO3, 4x25ml