The Use of Solid Sample – Microsampling Cup Flame A.A.S. For the Identification of Wax Crayons with Elevated Lead Levels

Alan P Newman; Andrew Hawkins

The Use of Solid Sample – Microsampling Cup Flame A.A.S. For the Identification of Wax Crayons with Elevated Lead Levels

Rotherham Metropolitan Borough Council

Research output: Contribution to conference › Poster

Abstract

The rapid analysis of products bought from the market is an important factor in reducing the length of time that the public may be exposed to dangerous products. At the time of writing imported wax crayons are a regular concern to regulators. This rapid solid sampling test using wax melted into a Delves microsampling cup then heating close to the flame to firstly volatilise the organic fraction then ashing the residue by pushing the cup into a slightly hotter zone is all the pre-treatment required prior to atomising the sample in the hottest part of the flame to allow determination of lead or cadmium by Atomic Absorption. Comparison with the statutory method, which should always be used as a follow up on presumptive positives showed very few false positive results.

Original language	English
Publication status	Published - Jul 1988
Externally published	Yes
Event	4th National Biennial Analytical Atomic Spectrometry Symposium - University of York, York, United Kingdom Duration: 29 Jul 1988 → 1 Aug 1988 Conference number: 4 https://pubs.rsc.org/en/content/articlelanding/1989/ja/ja9890400115/unauth#!

Conference

Conference	4th National Biennial Analytical Atomic Spectrometry Symposium
Country/Territory	United Kingdom
City	York
Period	29/07/88 → 1/08/88
Internet address	https://pubs.rsc.org/en/content/articlelanding/1989/ja/ja9890400115/unauth#!

Bibliographical note

This was a belated addition to the programme and the abstract was presented as an addendum in the form of a loose page.

Keywords

Flame AAS
Solid Sampling
Screening Test

Cite this

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title = "The Use of Solid Sample – Microsampling Cup Flame A.A.S. For the Identification of Wax Crayons with Elevated Lead Levels",

abstract = "The rapid analysis of products bought from the market is an important factor in reducing the length of time that the public may be exposed to dangerous products. At the time of writing imported wax crayons are a regular concern to regulators. This rapid solid sampling test using wax melted into a Delves microsampling cup then heating close to the flame to firstly volatilise the organic fraction then ashing the residue by pushing the cup into a slightly hotter zone is all the pre-treatment required prior to atomising the sample in the hottest part of the flame to allow determination of lead or cadmium by Atomic Absorption. Comparison with the statutory method, which should always be used as a follow up on presumptive positives showed very few false positive results. ",

keywords = "Flame AAS, Solid Sampling, Screening Test",

author = "Newman, {Alan P} and Andrew Hawkins",

note = "This was a belated addition to the programme and the abstract was presented as an addendum in the form of a loose page.; 4th National Biennial Analytical Atomic Spectrometry Symposium ; Conference date: 29-07-1988 Through 01-08-1988",

year = "1988",

month = jul,

language = "English",

url = "https://pubs.rsc.org/en/content/articlelanding/1989/ja/ja9890400115/unauth#!",

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TY - CONF

T1 - The Use of Solid Sample – Microsampling Cup Flame A.A.S. For the Identification of Wax Crayons with Elevated Lead Levels

AU - Newman, Alan P

AU - Hawkins, Andrew

N1 - Conference code: 4

PY - 1988/7

Y1 - 1988/7

N2 - The rapid analysis of products bought from the market is an important factor in reducing the length of time that the public may be exposed to dangerous products. At the time of writing imported wax crayons are a regular concern to regulators. This rapid solid sampling test using wax melted into a Delves microsampling cup then heating close to the flame to firstly volatilise the organic fraction then ashing the residue by pushing the cup into a slightly hotter zone is all the pre-treatment required prior to atomising the sample in the hottest part of the flame to allow determination of lead or cadmium by Atomic Absorption. Comparison with the statutory method, which should always be used as a follow up on presumptive positives showed very few false positive results.

AB - The rapid analysis of products bought from the market is an important factor in reducing the length of time that the public may be exposed to dangerous products. At the time of writing imported wax crayons are a regular concern to regulators. This rapid solid sampling test using wax melted into a Delves microsampling cup then heating close to the flame to firstly volatilise the organic fraction then ashing the residue by pushing the cup into a slightly hotter zone is all the pre-treatment required prior to atomising the sample in the hottest part of the flame to allow determination of lead or cadmium by Atomic Absorption. Comparison with the statutory method, which should always be used as a follow up on presumptive positives showed very few false positive results.

KW - Flame AAS

KW - Solid Sampling

KW - Screening Test

UR - https://pubs.rsc.org/en/content/articlelanding/1989/JA/JA9890400115

M3 - Poster

T2 - 4th National Biennial Analytical Atomic Spectrometry Symposium

Y2 - 29 July 1988 through 1 August 1988

ER -

The Use of Solid Sample – Microsampling Cup Flame A.A.S. For the Identification of Wax Crayons with Elevated Lead Levels

Abstract

Conference

Bibliographical note

Keywords

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Cite this