DR/2400
Barium
Barium_AVPP_Other_TUR_Eng_Ody.fm Page 1 of 6
• Perform a standard curve adjustment or a new calibration for each new lot of reagent. See Standard Solutions and Calibration
Standard Preparation.
• 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.
• Filter highly colored or turbid water samples using a funnel (Cat. No. 1083-67) and filter paper (Cat. No. 1894-57). Large amounts
of color or turbidity will interfere and cause high readings.
• Immediately after each test, clean the sample cell with soap, water, and a brush to prevent a film of barium from forming inside the
sample cell.
Barium
Method 8014
Turbidimetric Method*
* Adapted from Snell and Snell, Colorimetric Methods of Analysis, Vol. II, 769 (1959).
Powder Pillows or AccuVac
®
Ampuls
(1 to 100 mg/L)
Scope and Application: For water, wastewater, oil-field water, and seawater
1. Touch
Hach Programs.
Select program
20 Barium
Touch
Start.
2. Fill a round sample
cell with 25 mL of
sample.
3. Add the contents of
one BariVer
®
4 Barium
Reagent Powder Pillow
to the cell (this is the
prepared sample).
Cap and invert to mix.
Note: If barium is present, a
white turbidity will develop.
4. Touch the timer icon.
Touch
OK.
A five-minute reaction
period will begin.
Do not disturb the
sample during the
reaction period.
Tips and Techniques
Powder Pillows Method 8014
Hach Programs
10 mL
20 mL
25 mL
10 mL
20 mL
25 mL
To Next Page
Loading...
Need help?
General
