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DR/2400
(
Method 8506 and Method 8026
Powder Pillows or AccuVac
Scope and Application:
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)
Tips and Techniques
• 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
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.
Powder Pillows
Hach Programs
1.
Touch
.
Hach Programs
Select program
.
135 Copper, Bicin
Touch
.
Start
Copper_AVPP_Other_BIC_Eng_Ody.fm
Ampuls
®
For water, wastewater and seawater**; Method 8506 USEPA approved for
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.
Copper
Bicinchoninate Method*
(0.04 to 5.00 mg/L)
.
See the
Method 8506
4.
Touch the timer icon.
Touch
.
OK
A 2-minute reaction
period will begin.
Copper
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