Hach DR2400 User Manual

DR/2400
Nitrite
Nitrite_AVPP_Low_DAZ_Eng_Ody.fm Page 1 of 6
• 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.
• Wipe the outside of sample cells before each insertion into the instrument cell holder. Use a damp towel followed by a dry one to
remove fingerprints or other marks.
Nitrite
(Method 8507
Diazotization Method
Powder Pillows or AccuVac
®
Ampuls
LR (0.002 to 0.300 mg/L NO
2
–
–N)
Scope and Application: For water, wastewater, and seawater; USEPA approved for wastewater
analysis*
* Federal Register, 44(85), 25505 (May 1, 1979)
1. Touch
Hach Programs.
Select program
371 N, Nitrite LR.
Touch
Start.
2. Fill a round sample
cell with 10 mL of
sample.
3. Add the contents of
one NitriVer 3 Nitrite
Reagent Powder Pillow
(this is the prepared
sample).
Cap and shake to dissolve.
A pink color will develop
if nitrite is present.
4. Touch the timer icon.
Touch
OK.
A 20-minute reaction
period will begin.
Tips and Techniques
Powder Pillows Method 8507
Hach Programs

Hach DR2400 Specifications

General

Brand	Hach
Model	DR2400
Category	Measuring Instruments
Language	English