Hach DR/700 Procedures Manual page 467

COPPER
For water, wastewater and seawater**
Bicinchoninate Method* (Powder Pillows or AccuVac Ampuls),
USEPA Approved for reporting** (digestion required; see Section 1)†
USING POWDER PILLOWS
1.
Install module
55.01
in a DR/700.
Note: If samples cannot
be analyzed
immediately, see
Sampling and Storage
following these steps.
Adjust pH of stored
samples before analysis.
*Adapted from Nakano, S., Yakugaku Zasshi, 82, 486-491 [Chemical Abstracts, 58 3390e
(1963)].
**Pretreatment required; see Interferences (Using Powder Pillows)
†Powder Pillows only; Federal Register, 45 (105) 36166 (May 29, 1980)
(0 to 5.00 mg/L)
2.
Press:
The display will show
550 nm
and module number
55.01
Note: Determination of
total copper needs a
prior digestion; see
Digestion (Section 1)
for digestion
procedures.
3.
I/O
the display will show
a program number,
the concentration
units and the zero
prompt. If necessary,
press the
key until the lower
display shows
program number
55-19
Method 8506
After 2 seconds,
UP ARROW
55.04.1