PHENOLICS (SPECTROPHOTOMETRIC, MANUAL 4-AAP WITH DISTILLATION)

By EPA 9065, EPA 420.1

Scope:

This method is applicable to the analysis of ground water, drinking, surface, and saline waters, and domestic and industrial wastes. Phenolic materials react with 4-aminoantipyrine in the presence of potassium ferricyanide at a pH of 10 to form a stable reddish-brown antipyrine dye. The amount of color produced is a function of the concentration of phenolic material.

Method Data

Method 200.8
Hold Time6 months from preservation to analysis,
Preservationpreserve with HNO3 to pH <2 within two weeks of collection. Dissolve elements: acidfy the filtrate with HNO3 to pH <2 immediately after filtration. Solid samples should be kept at 4°C.
Sample Volume250mL HDPE bottle
Collection MethodGrab sampling
InstrumentationICP/MS PerkinElmer NexION 350X
Method Refernce200.8

Analyte List

AnalyteFormulaCAS Number
AluminumAl7429-90-5
AntimonySb7440-36-0
ArsenicAs7440-38-2
BariumBa7440-39-3
BerylliumBe7440-41-7
CadmiumCd7440-43-9
CalciumCa7440-70-2
ChromiumCr7440-47-3
CobaltCo7440-48-4
CopperCu7440-50-8
IronFe7439-89-6
LeadPb7439-92-1
MagnesiumMg7439-95-4
ManganeseMn7439-96-5
MolybdenumMo7439-98-7
NickelNi7440-02-0
PotassiumK7440-09-07
SeleniumSe7782-49-2
SilverAg7440-22-4
SodiumNa7440-23-5
ThalliumTl7440-28-0
TitaniumTi7440-32-6
VanadiumV7440-62-2
ZincZn7440-66-6

* The typical detection limits and analytes are displayed for this particular method. Please contact Specialty Analytical if other analytes or detection limits are required in addition to the 200.8 Analyte List.

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