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- W948799327 abstract "Surfactant OP was used as a wetting agent of sample and agar solution was used as a suspending agent, and the suspension of polymerized rosin was prepared by suspension technique. Or the ethyl alcohol solution of sample was emulsified into emulsion by the emulsifier OP. Both flame atomic absorption spectrometric methods for rapid determination of zinc in polymerized rosin with suspension technique and emulsification technique have been established. The test indicates that the marked increase in absorbance of zinc was achieved by adding suitable amount of hydrochloric acid into the suspension, the physical property of test solution was identical with its blank solution and there was not background absorption interference. Stable time of the suspension, the selection of emulsifyer, repeatability of absorbance and detection limit were studied. RSDs of determination results were not more than 2.5%. The recoveries were 97.1%-103.4%. The determination results of this method were consistent with those obtained by ashing method. The relative errors were not more than ±1.8%." @default.
- W948799327 created "2016-06-24" @default.
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- W948799327 date "2006-08-01" @default.
- W948799327 modified "2023-09-22" @default.
- W948799327 title "悬浮（乳化）液进样-火焰原子吸收光谱法测定聚合松香中锌" @default.
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