Impervious barrier-ring oven technique

West, Foymae K.; Dharmarajan, Venkatram; West, Philip W.

doi:10.1016/s0003-2670(01)82572-1

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Cadmium and Zinc1

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1975

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“…Ring oven* with 33-mm-ID adapter; operation of the heated ring at a setting of 4-5 of the heat control will nor mally produce the desired temperature of 90-100C 2. Capillary tubes, each calibrated in increments of [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] prepared; three days shelf life 9. 5 per cent ammonium thiosulfate 10.…”

Section: Cadmium and Zincmentioning

confidence: 99%

Determining Trace Metals by the Ring‐Oven Technique—Part 1 : Copper, Cadmium, and Zinc

West¹,

West²

1975

Journal AWWA

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An analytical scheme has been developed for the separation and concentration of copper, cadmium, and zinc from waters. The ring–oven technique is employed for the final concentration step and measurement of the isolated species. Detection of concentrations of these metals well below the maximum permissible concentration is possible with this technique. It is anticipated that this procedure will be useful in field studies and as a screening device to determine compliance with standards.

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