Cobalt – LaMotte SMART Spectro Spectrophotometer User Manual
Page 104
COBALT
PAN METHOD • CODE 4851
QUANTITY
CONTENTS
CODE
60 mL
*Cobalt Buffer
*4852-
H
60 mL
*Cobalt Indicator Reagent
*4853-
H
30 mL
*Stabilizer Solution
*4854-
G
2
Pipet, 1.0 mL, plastic
0354
1
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.
Cobalt rarely occurs in natural water. It is used in the manufacture of alloys to
increase corrosion resistance and strength. It is found in wastewaters as a
corrosion by-product.
APPLICATION:
Industrial wastewater.
RANGE:
0.00–2.00 Cobalt
METHOD:
PAN (1-(2-Pyridylazo)-2-Naphthol) forms a greenish
complex with Cobalt (Co
+2
) at a pH of 5.
SAMPLE
HANDLING &
PRESERVATION:
Store samples in acid-washed plastic bottles. Adjust pH to
less than 2 with nitric acid. Adjust sample pH to 5 before
testing.
INTERFERENCES:
Iron (+2) and high concentrations of heavy metals.
SMART SPECTRO TEST PROCEDURES 05.04
Cobalt 1/2