Measurement of Sr/Ca Ratio in Tridacna spp. Shells from South China Sea : A Comparison of SR-XRF and ICP-OES Analysis Methods
Mei, YJ; Shao, D; Wang, YH; Yang, ZK; Yang, WQ; Gao, YS; He, SM; Zheng, Y; Li, AG; Sun, LG
2018
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
卷号38期号:5页码:1640-1647
文章类型期刊论文
摘要Two different analysis methods were applied and compared for determining high-resolution Sr/Ca ratio profiles of one modern (live-caught) and four fossil (dead-collected) Tridacna spp. samples from South China Sea. The Sr/Ca profile of Tridacna gigas in the South China Sea determined by Inductively coupled plasma optical emission spectrometry (ICP-OES) had well defined annual cycles and was significantly, negatively correlated with sea surface temperature, implying that they can be used as good proxies of historical Sea Surface Temperature (SST). ICP-OES is an commonly used method for measuring Sr/Ca ratios in Tridacna spp. shells, but it needs ex-situ, time-consuming chemical pretreatments using variable acids and considerable amounts of sample. While the synchrotron radiation X-ray fluorescence (SR-XRF) technique does not have these shortcomings, it requires little sample preparation and allows rapid in situ analysis of solid-state samples at high spatial resolution (submicron scales), and it is characterized by non-destructive, high sensitivity, and multi-elemental distribution. In this study, we tested the feasibility of determining chemical elements in shell samples of Tridacna spp. by using SR-XRF. To the best of our knowledge, no similar studies have been reported in the literature. Our study showed that the data of SR-XRF can reflect the elements contents and their ratios change. SR-XRF derived Sr/Ca ratio profiles are significantly correlated with those from ICP-OES (P values for five Tridacna spp. samples are all <0.05); therefore, SR-XRF can be a promising alternative to ICP-OES. And it has a broad application potential in palaeoclimate reconstructions by using Tridacna spp..
关键词Giant Clam Shell Mu-xrf Paleoclimatic Implications Elemental Distributions Coral-skeletons Gigas Bivalves Sulfur Oscillation Speciation Profiles
DOI10.3964/j.issn.1000-0593(2018)05-1640-08
收录类别SCI
语种英语
WOS记录号WOS:000432512000051
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29067
专题中科院上海应用物理研究所2011-2018年
作者单位1.Mei, YJ
2.Shao, D
3.Wang, YH
4.Yang, ZK
5.Yang, WQ
6.Gao, YS
7.He, SM
8.Zheng, Y
9.Li, AG
10.Sun, LG
推荐引用方式
GB/T 7714
Mei, YJ,Shao, D,Wang, YH,et al. Measurement of Sr/Ca Ratio in Tridacna spp. Shells from South China Sea : A Comparison of SR-XRF and ICP-OES Analysis Methods[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2018,38(5):1640-1647.
APA Mei, YJ.,Shao, D.,Wang, YH.,Yang, ZK.,Yang, WQ.,...&Sun, LG.(2018).Measurement of Sr/Ca Ratio in Tridacna spp. Shells from South China Sea : A Comparison of SR-XRF and ICP-OES Analysis Methods.SPECTROSCOPY AND SPECTRAL ANALYSIS,38(5),1640-1647.
MLA Mei, YJ,et al."Measurement of Sr/Ca Ratio in Tridacna spp. Shells from South China Sea : A Comparison of SR-XRF and ICP-OES Analysis Methods".SPECTROSCOPY AND SPECTRAL ANALYSIS 38.5(2018):1640-1647.
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