Analysis and discrimination of ten different sponges by multi-step infrared spectroscopy  

作　　者：Jian-Hong Gan Chang-Hua Xu Hong-Zhe Zhu Fang Mao Fan Yang Qun Zhou Su-Qin Sun 

机构地区：[1]College of Food Science & Technology,Shanghai Ocean University [2]Department of Pharmacy,Changzheng Hospital,Second Military Medical University [3]Department of Pharmacy,Taian Maternal and Child Health Hospital [4]Key Laboratory for Marine Drugs,Department of Pharmacy,State Key Laboratory of Oncogenes and Related Genes,Ren Ji Hospital,School of Medicine,Shanghai Jiao Tong University [5]Department of Chemistry,Tsinghua University

出　　处：《Chinese Chemical Letters》2015年第2期215-220,共6页中国化学快报（英文版）

基　　金：supported by the National Natural Science Fund for Distinguished Young Scholars of China(No.81225023);the National Natural Science Fund of China(Nos.41476121, 81302691,81172978);the Innovation Program of Shanghai Municipal Education Commission(No.14YZ037);partially supported by Shanghai Subject Chief Scientist(No.12XD1400200);the financial support of the National High Technology Research and Development Program of China(863 Projects,No.2013AA092902)

摘　　要：In this study,a convenient method using multi-step infrared spectroscopy,including Fourier transform infrared spectroscopy（FT-IR）,second derivative infrared spectroscopy（SD-IR） and two-dimensional correlation infrared spectroscopy（2DCOS-IR）,was employed to analyze and discriminate ten marine sponges from two classes collected from the Xisha Islands in the South China Sea.Each sponge had an exclusive macroscopic fingerprint.From the IR spectra,it was noted that the main ingredient of calcareous sponges was calcium carbonate,but that of demosponges was proteins.For sponges from the same genus or having highly similar chemical profile（IR spectral profile）,SD-IR and 2DCOS-IR were applied to successfully reveal the tiny differences.It was demonstrated that the multi-step infrared spectroscopy was a feasible and objective approach for marine sponge identification.In this study,a convenient method using multi-step infrared spectroscopy,including Fourier transform infrared spectroscopy（FT-IR）,second derivative infrared spectroscopy（SD-IR） and two-dimensional correlation infrared spectroscopy（2DCOS-IR）,was employed to analyze and discriminate ten marine sponges from two classes collected from the Xisha Islands in the South China Sea.Each sponge had an exclusive macroscopic fingerprint.From the IR spectra,it was noted that the main ingredient of calcareous sponges was calcium carbonate,but that of demosponges was proteins.For sponges from the same genus or having highly similar chemical profile（IR spectral profile）,SD-IR and 2DCOS-IR were applied to successfully reveal the tiny differences.It was demonstrated that the multi-step infrared spectroscopy was a feasible and objective approach for marine sponge identification.

关 键 词：Sponge Discrimination Infrared spectroscopy Second derivative infrared spectroscopy Two-dimensional correlation infrared spectroscopy 

分 类 号：Q958.8[生物学—动物学] O657.33[理学—分析化学]