Phenol – LaMotte SMART Spectro Spectrophotometer User Manual

Page 218

PHENOL

AMINOANTIPYRINE METHOD • CODE 3652-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

Spoon, 0.1 g, plastic

0699

Pipet, plain, plastic

0352

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 seldom contain more than 1

mg/L phenol.

Phenols may be removed from water by various treatment processes including

chlorination and activated carbon absorption.

APPLICATION:

Drinking and surface waters; domestic and industrial

wastewaters.

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.

SMART Spectro Test Procedures 2.11

PHENOL

Test P

rocedures