DR/2400
Lead
Lead_None_Other_LTK_Eng_Ody.fm Page 1 of 8
• For more accurate results, determine a reagent blank value for each new lot of reagent. Follow the procedure using deionized
water in place of the sample. Subtract the reagent blank value from the final results or perform a reagent blank adjust. See the
instrument manual for more information on Running a Reagent Blank.
• The sampling requirements for “first-draw” analysis are detailed in Sample Collection, Storage and Preservation on page 4.
• Reagents will stain the sample cells, rinse the cells with 1:1 HNO
3
, followed by deionized water.
Lead
Method 8317
LeadTrak
®
* Fast Column Extraction Method
* Patent Number 5,019,516
(5 to 150 µg/L)
Scope and Application: For drinking water
1. Touch
Hach Programs.
Select program
283 Lead, LeadTrak LR.
Touch
Start.
2. Fill a 100-mL plastic
graduated cylinder with
100 mL of the sample.
Pour the measured
sample into a 250-mL
plastic beaker.
3. Using a plastic 1-mL
dropper, add 1.0 mL of
pPb-1 Acid Preservative
Solution to the sample
and swirl to mix.
If the sample has been
preserved previously with
pPb-1 Acid Preservative
at a ratio of 1.0 mL per
100 mL sample, omit steps
3 and 4.
4. Touch the timer icon.
Touch
OK.
A two-minute reaction
period will begin.
Tips and Techniques
10 mL
20 mL
25 mL
Fast Column Extraction Method 8317
Hach Programs
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