5
V.
V.
V.
V.
V. Equipment required:
Equipment required:
Equipment required:
Equipment required:
Equipment required:
•
Hanna HI 5315 Double Junction Reference Electrode
with HI 7072 Fill Solution for use with HI 4008 half-
cell.
•
Hanna HI 4222 pH/ISE/mV meter or other suitable
ion or pH/mV meter. (Note: log/linear graph paper is
useful if an ISE (ion) meter is not available).
•
Hanna HI 180 Magnetic Stirrer or equivalent with TFE
coated stirring bars (HI 731320). Note: isolate bea-
kers from stirrer motor heat by placing insulating
material such as foam or cork between them.
•
Hanna HI 76404 Electrode Holder or equivalent.
•
Plastic beakers (HI 740036P) or other suitable mea-
surement vessel.
VI.
VI.
VI.
VI.
VI. Solutions Required
Solutions Required
Solutions Required
Solutions Required
Solutions Required
For Cupric Measurements
0.1 M cupric standard, (500 mL)
HI 4008-01
ISA, (500 mL)
HI 4000-00
For direct cupric measurements- Using volumetric pipettes
and glassware, make dilutions of HI 4008-01 to bracket
the concentration of the samples. Note: 0.1M cupric stan-
dard is equivalent to 6355 ppm. Standards with concen-
trations
<
10
-3
M (63.6 ppm) should be prepared daily.
Store in tightly closed plastic bottle. To 100 parts standard
or sample add 2 mL of ISA.
