單項(xiàng)選擇題

【A1型題】The purpose of the ashing step in graphite-furnace atomic-absorption spec-troscopy is to（）

A.Vaporize metal atoms to be analyzed
B.Cause the metal species to form carbides which are more volatile
C.Convert the graphite furnace to ash to avoid carbide formation
D.Burn off organic species that would interfere with the elemental analysis

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單項(xiàng)選擇題

【A1型題】The purpose of the flame in flame atomic-absorption spectroscopy is to（）

A.Purify the sample
B.Desolvate and atomize the analyte atoms in a sample
C.Excite the analyte atoms
D.Ionize the analyte atoms

單項(xiàng)選擇題

【A1型題】A hollow-cathode lamp is（）

A.A broad-band light source
B.A narrow-band light source
C.A light detector
D.Not a light source

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【A1型題】The purpose of the ashing step in graphite-furnace atomic-absorption spec-troscopy is to（）

你可能感興趣的試題

【A1型題】The purpose of the flame in flame atomic-absorption spectroscopy is to（）

【A1型題】A hollow-cathode lamp is（）

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