Abstract
Analysis by Energy Dispersive X-Ray Fluorescence (ED-XRF) technique of liquid samples and specimens in aqueous media requires that the sample chamber be flushed with helium gas. Moreover the sample should also be covered with mylar foil to hold the sample. The helium environment and the X-ray beam but also affect the sensitivity of different elements. An investigation was carried out with six multielement NBS standards to evaluate the effect of helium environment and mylar foil on the sensitivity of various elements. The effect of both the factors can be employed to improve the results of liquid samples with ED-XRF technique.
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