Author： Jin Zhangdong Bickle Mike Chapman Hazel Yu Jimin Greaves Mervyn Wang Sumin Chen Shiyue
Publisher： Springer Publishing Company
ISSN： 0921-2728
Source： Journal of Paleolimnology, Vol.36, Iss.2, 2006-08, pp. : 211-218
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Abstract
To evaluate the effect of sample preparation on the trace element composition of ostracod shells, fossil shells subjected to various cleaning steps were analyzed by ICP-AES. The variations in ostracod Mg/Ca ratios reveal that fossil ostracod samples cleaned by ultrasonic methanol yield lower values than those by other methods, including increasingly rigorous reductive cleaning. In our sample sets, shell Mg/Ca decreases ∼ ∼1.5 mmol/mol during clay removal. Sample Sr/Ca results do not seem to vary significantly under the equivalent cleaning steps. For ostracod analysis, pre-treatment using multiple methanol ultrasonic cleaning is suggested to be used for gaining an appropriate result.
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