Hach DR2400 Manual page 490

Nitrogen, Ammonium
Summary of Method
Required Reagents
Description
Ammonium - NH , UniCell™ HCT 102 ......................................................................... 23/pkg.............. HCT 102
4
Required Apparatus
Adapter, 16-mm Cell .......................................................................................................... each....................59457-00
Pipettor, Jencons, 1–5 mL................................................................................................... each....................27951-00
Replacement tips for 27951-00 .......................................................................................... 100/pkg.............27952-00
Optional Reagents
Nitrogen Ammonia Standard Solution, 1000-mg/L NH
Sulfuric Acid, ACS.............................................................................................................. 500 mL...................979-49
Sodium Hydroxide Standard Solution, 5.0 N................................................................. 50 mL SCDB .......2450-26
Water, deionized ................................................................................................................. 4 L ..........................272-56
Optional Apparatus
Cylinder, mixing, 100-mL.................................................................................................. each....................20886-42
Flask, volumetric, 1000-mL ............................................................................................... each....................14574-53
®
Pipet, TenSette , 0.1 to 1.0 mL .......................................................................................... each....................19700-01
®
Pipet Tips, for TenSette
FOR TECHNICAL ASSISTANCE, PRICE INFORMATION AND ORDERING:
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© Hach Company, 2003. All rights reserved. Printed in the U.S.A.
Page 4 of 4
Ammonium ions react with hypochlorite ions and salicylate ions at pH 12.6 in
the presence of sodium nitroferricyanide to form indophenol blue. Test results
are measured at 694 nm.
Pipet 19700-01 ......................................................................... 50/pkg...............21856-96
Call toll-free 800-227-4224
Contact the HACH office or distributor serving you.
www.hach.com ; E-mail – techhelp@hach.com
–N....................................... 1 L ......................23541-53
3
Unit Cat. No.
HACH COMPANY
WORLD HEADQUARTERS
Telephone: (970) 669-3050
FAX: (970) 669-2932
3/04 1ed
NitrogenAmm_UniCell_SAL_Eng_Ody.fm