DR/2400
Copper
Copper_AVPP_Other_BIC_Eng_Ody.fm Page 1 of 6
• Digestion is required for determining total copper. See Section 4 for the digestion procedure.
• The chemistry is pH sensitive. Adjust the pH of acid-preserved samples to 4–6 with 8 N KOH before analysis.
• 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.
• If copper is present, the sample will turn purple when it mixes with the reagent powder.
• Accuracy is not affected by undissolved powder.
Copper
(Method 8506 and Method 8026
Bicinchoninate Method*
Powder Pillows or AccuVac
®
Ampuls
(0.04 to 5.00 mg/L)
Scope and Application: For water, wastewater and seawater**; Method 8506 USEPA approved for
reporting wastewater analysis (digestion required; See Section 4)***
* Adapted from Nakano, S., Yakugaku Zasshi, 82 486-491 (1962) [Chemical Abstracts, 58 3390e (1963)]
** Pretreatment required; see Interferences (Using Powder Pillows)
*** Federal Register, 45 (105) 36166 (May 29, 1980)
1. Touch
Hach Programs.
Select program
135 Copper, Bicin.
Touch
Start.
2. Fill a sample cell with
10 mL of sample.
3. Add the contents of
one CuVer
®
1 Copper
Reagent Powder Pillow
to the sample cell
(the prepared sample).
Cap and invert to mix.
Note: Use a CuVer 2 Copper
Reagent Pillow for samples
containing high levels of
aluminum, iron, and hardness.
A 25-mL sample cell is
required. See Table 1.
4. Touch the timer icon.
Touch
OK.
A 2-minute reaction
period will begin.
Tips and Techniques
Powder Pillows Method 8506
Hach Programs
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