LaMotte AM-21 Water Pollution Detection Outfit - Manual (Page 26)

Overhead Projection Demonstration
Quantity Contents Code
15 mL *Copper 1 *6446-E
2 x 15 mL Copper 2 6613-E
2 Test Tubes, “A & B” 0804
1 Demonstration Stage, three cell 1039
1 Spatula 0691
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 email, phone or fax.
Procedure
1. Fill a test tube (0804) to the upper line marked “A” with the sample
water.
2. Add 5 drops of *Copper 1 (6446) and mix. A yellow color indicates the
presence of copper. Pour this into one of the cells of the demonstration
stage (1039). Mark this cell “Test Sample.”
3. Fill the second test tube (0804) to the lower line marked “B” with
distilled water. Pour this into a second cell of the demonstration stage
(1039). Mark this cell “Reference Sample.”
4. Add Copper 2 (6613) to the Reference Sample in the second cell, one
drop at a time, stirring the solution with the Spatula (0691) after each
drop. Count the drops and continue the addition until the Reference
Sample color matches the Test Sample color.
5. The test result is calculated as:
Copper (ppm) = 0.025 x No. Drops Copper 2
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