Aluminum
© Hach Company, 2003. All rights reserved. Printed in the U.S.A. 3/04 1ed
Page 6 of 6 Aluminum_PP_Other_ECR_Eng_Ody.fm
HACH COMPANY
WORLD HEADQUARTERS
Telephone: (970) 669-3050
FAX: (970) 669-2932
FOR TECHNICAL ASSISTANCE, PRICE INFORMATION AND ORDERING:
Call 800-227-4224
Contact the HACH office or distributor serving you.
www.hach.com techhelp@hach.com
In the U.S.A. –
Outside the U.S.A. –
On the Worldwide Web – ; E-mail –
toll-free
3. Touch On. Touch Adjust to accept the displayed concentration (the value
depends on the selected chemical form). If an alternate concentration is used,
touch the number in the
Adjust to field and enter the actual concentration.
Press
OK.
See Section 3.2.4 Adjusting the Standard Curve on page 40 for more information.
Method Performance
Precision
Standard: 0.100 mg/L Al
3+
See Section 3.4.3 Precision on page 44 for more information, or if the standard
concentration did not fall within the specified range.
Sensitivity
See Section 3.4.5 Sensitivity on page 44 for more information.
Summary of Method
Eriochrome Cyanine R combines with aluminum in a sample to produce an
orange-red color. The intensity of color is proportional to the aluminum
concentration. Test results are measured at 535 nm.
Required Reagents
Quantity Required
Description per test Unit Cat. No.
Aluminum Reagent Set (100 Tests) ...............................................................................................................26037-00
Includes:
ECR Reagent Powder Pillows ..........................................................1 pillow........... 100/pkg.............26038-49
Hexamethylenetetramine Buffer Reagent Powder Pillows .........1 pillow........... 100/pkg.............26039-99
ECR Masking Reagent Solution....................................................... 2 drops........... 25 mL SCDB .....23801-23
Required Apparatus
Cylinder, 25-mL, graduated mixing, with glass stopper ....................1 ....................... each......................1896-40
Sample Cells, 10-mL, w/cap...................................................................2 ....................... 6/pkg.................24276-06
Thermometer, -10 to 110 °C ............................................................................................... each......................1877-01
Required Standards
Aluminum Standard Solution, 100-mg/L ...................................................................... 100 mL...............14174-42
Aluminum Standard Solution, 10-mL Voluette
®
Ampule, 50-mg/L as Al................ 16/pkg...............14792-10
Water, deionized ................................................................................................................. 4 liters ....................272-56
Program 95% Confidence Limits of Distribution
9 0.086–0.114 mg/L Al
3+
Portion of Curve ∆Abs ∆Concentration
Entire range 0.010 0.002 mg/L Al
3+
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