Hanna-instruments HI 4008 Manual do Utilizador descarregar pdf (Página 5)

V. V.

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.

Solutions RequiredSolutions 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.

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Hanna-instruments HI 4008 Manual do Utilizador Página 5