LaMotte SMART 2 - Manual (Page 63)

ALUMINUM
ERIOCHROME CYANINE R METHOD • CODE 364I-SC
QUANTITY CONTENTS CODE
5 g *Aluminum Inhibitor Reagent *7865-C
2 x 120 mL *Aluminum Buffer Reagent *7866-J
120 mL Aluminum Indicator Reagent 7867-J
15 mL Aluminum Complexing Reagent 7868-E
1 Spoon, 0.05 g, plastic 0696
2 Pipets, 1.0 mL, plastic 0354
1 Test Tube, glass, 5 mL w/cap 0230
*WARNING: Reagents marked with an * are considered to be potential health
hazards. To view or print a Material Safety Data Sheet (MSDS) for these reagents go to
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.
Aluminum is the third most common element in the earth’s crust, which
accounts for its wide appearance in many water supplies. Aluminum exists in
water as soluble salts, colloidal compounds, and insoluble compounds. In
wastewater that has been treated by alum coagulation it will appear in one or
more of the above forms. Properly treated drinking water should have an
aluminum concentration below 0.05 mg/L.
APPLICATION: Drinking, surface, and saline waters; domestic and industrial
wastewater.
RANGE: 0.00–0.30 ppm Aluminum
METHOD: Aluminum ions buffered to a pH of 6.0 react with
Eriochrome Cyanine R dye to produce a pink to red complex
in proportion to the concentration.
SAMPLE
HANDLING &
PRESERVATION: Collect sample in acid washed glass or plastic bottle. Analyze
as soon as possible.
INTERFERENCES: Fluoride and polyphosphate will interfere. Interference from
iron and manganese is eliminated by the addition of an
inhibitor.
Smart2 TEST PROCEDURES 2.04 Aluminum 1/2