Hach DR2400 - Phenols

DR/2400
Phenols
Phenols_None_Other_4AM_Eng_Ody.fm Page 1 of 6
• Analyze samples within four hours to avoid oxidation.
• Spilled reagent affects test results and is hazardous to skin and other materials.
• Use chloroform only with proper ventilation.
• 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.
• Phenol 2 Reagent Powder Pillows contain potassium ferricyanide. Both chloroform (D022) and cyanide (D001) solutions are
regulated as hazardous waste by the Federal RCRA. Do not pour these materials down the drain. Chloroform solutions and the
cotton plug used in the delivery tube of the separatory funnel should be collected for disposal as a reactive waste. Be sure that
cyanide solutions are stored in a caustic solution with a pH >11 to prevent release of hydrogen cyanide gas. See Waste
Management and Safety on page 55 for further information on proper disposal of these materials.
Phenols
(Method 8047
4-Aminoantipyrine Method*
*Adapted from Standard Methods for the Examination of Water and Wastewater
(0.002 to 0.200 mg/L)
Scope and Application: For water and wastewater; USEPA accepted (distillation required)**
** Procedure is equivalent to USEPA method 420.1 for wastewater
1. Touch
Hach Programs.
Select program
470 Phenols.
Touch
Start.
2. Measure 300 mL of
deionized water in a
500-mL graduated
cylinder.
3. Pour the measured
deionized water into a
500-mL separatory funnel
(this is the blank).
4. Measure 300 mL of
sample in a 500-mL
graduated cylinder.
Tips and Techniques
10 mL
20 mL
25 mL
Method 8047
Hach Programs
B