Hach DR2400 Manual page 272

Cyanide
Method Performance
Summary of Method
Required Reagents
Description
Cyanide Reagent Set .......................................................................................................................................24302-00
Includes:
®
(1) CyaniVer 3 Cyanide Reagent Powder Pillows....................... 1 pillow........... 100/pkg.............21068-69
®
(1) CyaniVer 4 Cyanide Reagent Powder Pillows....................... 1 pillow........... 100/pkg.............21069-69
®
(1) CyaniVer 5 Cyanide Reagent Powder Pillows....................... 1 pillow........... 100/pkg.............21070-69
Required Apparatus
Cylinder, graduated, 10-mL .................................................................... 1 ....................... each........................508-38
Sample Cells, 10-mL, w/cap................................................................... 2 ....................... 6/pkg.................24276-06
Required Standards
Potassium Cyanide, ACS................................................................................................... 125 g.......................767-14
Water, deionized ................................................................................................................. 4 liters ....................272-56
FOR TECHNICAL ASSISTANCE, PRICE INFORMATION AND ORDERING:
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© Hach Company, 2003. All rights reserved. Printed in the U.S.A.
Page 8 of 8
2. Immediately before use, prepare a 0.200 mg/L cyanide working solution by
diluting 2.00 mL of the 100 mg/L stock solution to 1000 mL using
deionized water.
3. To adjust the calibration curve using the reading obtained with the
0.200 mg/L standard solution, touch
Touch
Standard Adjust
4. Touch . Touch
On Adjust
depends on the selected units). If an alternate concentration is used, touch the
number in the box to enter the actual concentration, then touch
See Section 3.2.4 Adjusting the Standard Curve on page 40 for more information.
Precision
Standard: 0.120 mg/L CN
Program
160
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
Portion of Curve
Entire range
See Section 3.4.5 Sensitivity on page 44 for more information.
The Pyridine-Pyrazalone method used for measuring cyanide gives an intense
blue color with free cyanide. A sample distillation is required to determine
cyanide from transition and heavy metal cyanide complexes. Test results are
measured at 612 nm.
Call toll-free 800-227-4224
Contact the HACH office or distributor serving you.
www.hach.com ; E-mail – techhelp@hach.com
on the current program menu.
Options
.
to accept the displayed concentration (the value
–
95% Confidence Limits of Distribution
0.110–0.130 mg/L CN
∆Abs
0.010
Quantity Required
per test
. Touch
OK Adjust
–
∆Concentration
–
0.001 mg/L CN
Unit Cat. No.
HACH COMPANY
WORLD HEADQUARTERS
Telephone: (970) 669-3050
FAX: (970) 669-2932
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Cyanide_PP_Other_PPZ_Eng_Ody.fm
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