DR/2400
Copper
Copper_PP_Low_POR_Eng_Ody.fm Page 1 of 6
• Digestion is required for determining total copper. See Section 4 for digestion procedure.
• For more accurate results, determine a reagent blank value for each new lot of reagent. Follow the procedure using deionized
water in place of the sample. Subtract the reagent blank value from the final results or perform a reagent blank adjust
. See the
instrument manual for more information on Running a Reagent Blank.
• Wash all glassware with detergent. Rinse with tap water. Rinse again with 1:1 Nitric Acid Solution. Rinse a third time with
copper-free, deionized water.
• If samples contain high levels of metals, a slight metallic deposit or yellow buildup may form in the sample cell. Wash the cell as
described above.
Copper
Method 8143
Porphyrin Method*
* Adapted from Ishii and Koh, Bunseki Kagaku, 28 (473), 1979
Powder Pillows
LR (2 to 210 µg/L)
Scope and Application: For water, wastewater, and sea water
1. Touch
Hach Programs.
Select program
145 Copper, Porphyrin.
Touch
Start.
2. Fill two round sample
cells with 10 mL of
sample.
3. Add the contents of
one Copper Masking
Reagent Powder Pillow
to one of the sample cells
(the blank). Swirl to
dissolve.
The second sample cell is
the prepared sample.
4. Add the contents of
one Porphyrin 1 Reagent
Powder Pillow to each
sample cell. Swirl to
dissolve.
Tips and Techniques
Powder Pillows Method 8143
Hach Programs
10 mL
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