Photometric determination of lead
Photometric determination with dithizone.
At pH 7 to 9 in the presence of cyanide lead(II) ions react with dithizone to form primary lead dithizonate, which is soluble in carbon tetrachloride with high selectivity yielding a pink solution (extraction method).
Data and ordering information
REF 918 101
Type standard test 1-10
Range 10 mm cuvette: 0.03 – 1.00 mg/L Pb2+
50 mm cuvette: 0.005 – 0.500 mg/L Pb2+
Sufficient for 25 determinations
Shelf life at least 1.5 years
Sea water suitability no