DR/2400
Phosphorus, Reactive
PhosphorusReac_PT_High_MOL_Eng_Ody.fm Page 1 of 6
• Clean the Pour-Thru cell and all labware as specified in Treating Analysis Labware on page 4.
• Protect the Pour-Thru cell from contamination when not in use by inverting a small beaker over the top of the glass funnel.
• Final samples will contain molybdenum. In addition, final samples will have a pH less than 2 and are considered corrosive (D002)
by the Federal RCRA. Consult the Material Data Safety Data Sheet for information specific to the reagents used.
• Install the Pour-Thru Cell into the adapter so that the long pathlength (1-in./25-mm) is parallel to the front of the instrument.
Phosphorus, Reactive
Method 8114
Molybdovanadate Rapid Liquid Method*
* Adapted from Standard Methods for the Examination of Water and Wastewater.
Pour-Thru Cell
HR (0.3 to 45.0 mg/L PO
4
3–
)
Scope and Application: For treated and natural waters
1. Touch
Hach Programs.
Select program
489 P React. Mo. HR RL.
Touch
Start.
2. Install the Pour-Thru
Cell and multi-
pathlength cell adapter
in the sample cell
compartment.
Note: See Section 2.6.1 on
page 26 in the Instrument
manual for installation details.
Flush with 50-mL of
deionized water.
Note: Use the 25-mm cell
pathlength.
3. Rinse a clean plastic
125-mL Erlenmeyer flask
and a 25-mL graduated
cylinder with deionized
water.
4. Measure 25 mL of
deionized water in the
graduated cylinder. Pour
the water into the flask
(this is the blank).
Tips and Techniques
DR/2400 Pour-Thru Cell Method 8114
Hach Programs
To Next Page
Loading...
Need help?
General
