LaMotte SMART Spectro Spectrophotometer - Manual (Page 68)

CADMIUM
PAN METHOD • CODE 4017
QUANTITY CONTENTS CODE
60 mL Buffered Ammonia Reagent 4020-H
15 mL Sodium Citrate, 10% 6253-E
30 mL PAN Indicator 4021-G
30 mL Stabilizing Reagent 4022-G
1 Pipet, 1.0 mL, plastic 0354
2 Pipet, 0.5 mL, plastic 0353
*WARNING: Reagents marked with a * are considered to be potential health hazards. To view
or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.
Cadmium is used in batteries, paint pigments, electroplating processes, and
with other metals in the preparation of alloys. The solubility of cadmium in
natural water is proportional to the hardness or alkalinity of the water.
Cadmium is not an essential nutrient for plants and animals. It is extremely
toxic and can accumulate in the kidneys and liver.
APPLICATION: Drinking and surface waters; domestic and industrial
wastewater.
RANGE: 0.00–1.00 Cadmium
METHOD: PAN (1-(2-Pyridylazo)-2-Naphthol) forms a red complex
with Cadmium (Cd
+2 ) at a pH of 10.
SAMPLE
HANDLING &
PRESERVATION: Analyze sample as soon as possible. If sample must be stored,
acidify with nitric acid to a pH below 2.
INTERFERENCES: Ag +2 , Co +2 , Cu +2 , Mn +2 , Ni +2 , Zn +2 , Y +3 , In +3
SMART SPECTRO TEST PROCEDURES 05.04 Cadmium 1/2