Hanna-instruments HI 4002 Uživatelský manuál stáhnout pdf (Strana 5)

V. V.

Equipment required:Equipment required:

Equipment required:

• Hanna HI 5315 Double Junction Reference Electrode

with HI 7072 Fill Solution for HI 4002.

• 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 Bromide Measurementsfor Bromide Measurements

for Bromide Measurements

0.1 M Bromide Standard, 500 mL HI 4002-01

ISA, 500 mL HI 4000-00

For Molar solutions:

Using volumetric pipettes and glassware make serial dilu-

tions to approximately bracket the concentration of the

samples. Standards with concentrations < 10

-3

M should

be prepared daily.

Two mL of Hanna ISA for Halide electrodes (HI 4000-00)

should be added to 100 mL of sample or standard.

For ppm solutions:

Prepare 799 ppm bromide standard by diluting HI4002-

01: Pipette 100 mL standard to a 1 liter volumetric flask.

Add deionized water to volume. Using additional volumet-

ric pipettes and glassware make serial dilutions of this 799

ppm standard to approximately bracket the concentration

of the samples. Standards with concentrations < 80 ppm

should be prepared daily.

Two mL of Hanna ISA for Halide electrodes (HI 4000-00)

should be added to 100 mL of sample or standard.

1 2 3 4 5 6 7 8 9 10 ... 15 16

Žádné komentáře

Hanna-instruments HI 4002 Uživatelský manuál Strana 5