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Setup and Operation Model 6750
Teledyne Analytical Instruments 38
CAUTION: SODIUM PERSULFATE IS A STRONG OXIDIZING
AGENT. TAKE ALL NECESSARY PRECAUTIONS AS
WITH HANDLING ANY CORROSIVE MATERIAL.
ALL CHEMICALS, INCLUDING WATER, SHOULD BE
REAGENT GRADE OR BETTER AND FREE OF
CARBON-CONTAINING COMPOUNDS.
THE CONTAINER USED SHOULD BE FLUSHED WITH
DISTILLED OR DEIONIZED (DI) WATER.
a. Dissolve 238 grams of ultra-pure reagent grade
sodium persulfate (P/N ST40000) into one (1) liter of
distilled water.
b. Do not heat reagent to dissolve, as this is not
necessary and can reduce the effectiveness of the
solution. It should be noted that some reagent grade
sodium persulfate is not really “pure”. All persulfate
supplied by Teledyne is guaranteed to have sufficient
purity for proper operation.
5. Acid Preparation:
Phosphoric Acid is the acid of choice.
PREPARATION OF PHOSPHORIC ACID SOLUTION
a. The container used should be flushed with distilled or
deionized (DI) water.
b. Add 117ml of 85% phosphoric acid to one (1) liter of
DI Water.
CAUTION: CONTACT WITH PHOSPHORIC ACID LIQUID OR
VAPOR CAN DAMAGE TISSUE, CAUSE EYE
DAMAGE, RESULT IN SEVERE BURNS AND CAUSE
LUNG AND RESPIRATORY DAMAGE. WEAR
PROPER PROTECTIVE CLOTHING AND SAFETY
GLASSES WITH SPLASH SHIELDS. TREAT ALL
ACIDS WITH CAUTION AND HANDLE WITH CARE.
ALWAYS WORK IN AN APPROVED FUME HOOD
WHEN HANDLING OPEN CONTAINERS OF ACIDS.
6. “End-to End” Calibration: