Lamotte SMART3 Colorimeter User Manual download pdf (Page 249)

PHENOL

AMINOANTIPYRINE METHOD • CODE 3652-01-SC

QUANTITY CONTENTS CODE

5 g Aminoantipyrine Reagent 7825-C

30 mL *Ammonium Hydroxide Solution *7826-G

2 x 60 mL *Potassium Ferricyanide Solution *7827-H

1 Spoon, 0.1 g, plastic 0699

1 Pipet, plain, plastic 0352

1 Pipet, 1.0 mL, plastic 0354

*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.

Phenols may occur in domestic and industrial waste waters and in drinking water

supplies. Chlorination of waters containing phenols may produce odiferous and

objectionable tasting chlorophenols. Natural waters sedom contain more than 1

mg/L phenol.

APPLICATION: Drinking and surface waters; domestic and industrial

waste water.

RANGE: 0.00–6.00 ppm Phenol

MDL: 0.05 ppm

METHOD: 4-Aminoantipyrine is oxidized in the presence of all ortho-

and meta- substituted phenols to form a colored complex

in proportion to the amount of phenol present.

SAMPLE HANDLING

& PRESERVATION:

Phenols are subject to biological and chemical oxidation.

Samples should be analyzed within 4 hours after

collection. If sample cannot be analyzed within 4 hours,

it can be preserved by acidiﬁ cation with phosphoric acid

to pH 4.0.

INTERFERENCES: Oxidizing and reducing chemicals, alkaline pH values,

and phenol decomposing bacteria may interfere with the

test.

SMART3 Test Procedures 2.11 PHENOL

Test Procedures

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Lamotte SMART3 Colorimeter User Manual Page 249