Phenol – LaMotte SMART Spectro Spectrophotometer User Manual

Page 196

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 a * are considered to be potential health hazards. To view
or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or
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

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 acidification 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 12.07

Phenols 1/2