Transcription of METHOD 7420 LEAD (ATOMIC ABSORPTION, …
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METHOD 7420 LEAD (ATOMIC ABSORPTION, …
7420 1CD-ROMR evision 0 Date September 1986 METHOD 7420 LEAD ( atomic absorption , direct aspiration ) AND Section of METHOD OF Section of METHOD Section of METHOD 7000 if interferences are correction is required at either AND basic apparatus, see Section of METHOD parameters (general) hollow cathode : nm (primary); nm (alternate). : : of flame: Oxidizing (fuel lean). correction: Section of METHOD of standards: solution: Dissolve g of lead nitrate, Pb(NO)32(analytical reagent grade), in Type II water, acidify with 10 mLredistilled HNO, and dilute to 1 liter with Type II water. Alternatively,3procure a certified standard from a supplier and verify by comparison witha second dilutions of the stock solution to be used ascalibration standards at the time of analysis. The calibration standardsshould be prepared using the same type of acid and at the sameconcentration as will result in the sample to be analyzed 2CD-ROMR evision 0 Date September COLLECTION, PRESERVATION, AND Chapter Three, Section , Sample Handling and preparation: The procedures for preparation of the sample aregiven in Chapter Three, Section METHOD 7000, Paragraph , direct Section of METHOD
7420 1 CD-ROM Revision 0 Date September 1986 METHOD 7420 LEAD (ATOMIC ABSORPTION, DIRECT ASPIRATION) 1.0 SCOPE AND APPLICATION 1.1 See Section 1.0 of Method 7000.
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