LaMotte SMART3 Colorimeter User Manual

Page 196

APPLICATION:

Drinking, surface, and saline waters; domestic and

industrial wastes.

RANGE:

0.00–10.00 ppm

MDL:

0.05 ppm

METHOD:

Ferric iron is reduced to ferrous iron and subsequently

forms a colored complex with bipyridyl for a quantitative

measure of total iron.

SAMPLE HANDLING

& PRESERVATION:

The sample container should be cleaned with acid and

rinsed with deionized water. Addition of acid to adjust the

sample th pH 2-3 will prevent depositation of iron on the

container walls. Samples should be analyzed as soon as

possible.

INTERFERENCES:

Strong oxidizing agents interfere, as well as copper and

cobalt in excess of 5.0 ppm.

IRON, UDV

SMART3 Test Procedures 11.10

Test P

rocedures