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Study on identification methods in the detection of transgenic material based on terahertz time domain spectroscopy

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Abstract

Terahertz time-domain spectroscopy system was used to measure the characteristic absorption spectra of 8 transgenic cotton seeds in the frequency range from 0.3 to 1.5 THz. Comparing the similarities and differences of THz absorption spectrum of eight kinds of transgenic cotton seeds, which is based on spectral analysis, and using principal component analysis to perform qualitative analysis, the relevant data of spectral analysis was obtained. Three principal component factors were extracted in this paper, which the cumulative percentage variance reached 71.537 %. Therefore, different categories of transgenic cotton seeds were clearly distinguished according to the principal component analysis score chart. The experimental results indicated that nondestructive testing of transgenic cotton seeds could be achieved by using Terahertz time-domain spectroscopy system technology, which could be widely applied in the fields of agricultural seed selection, agricultural security and so on.

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Acknowledgments

We would like to express our gratitude to all those who helped us during the writing of this thesis, and these foundation such as Natural Science Foundation of Guangxi (Grant No. 2013GXNSFDA019002, 2014GXNSFGA118003), Guilin scientific research and technology development program (Grant No. 20140127-1, 20150133-3), Guangxi education scientific research program (Grant No. ZD2014057) and Key laboratory foundation of Guangxi Key Laboratory of Automatic Detecting Technology and Instruments (YQ14206).

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Authors and Affiliations

  1. School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, 541004, China

    Zhang Wentao, Nie Junyang & Tu Shan

  2. Guangxi Colleges and Universities Key Laboratory of Optoelectronic Information Processing, Guilin, 541004, China

    Zhang Wentao, Nie Junyang & Tu Shan

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  1. Zhang Wentao
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  2. Nie Junyang
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  3. Tu Shan
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Correspondence to Zhang Wentao.

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Wentao, Z., Junyang, N. & Shan, T. Study on identification methods in the detection of transgenic material based on terahertz time domain spectroscopy. Opt Quant Electron 47, 3533–3543 (2015). https://doi.org/10.1007/s11082-015-0228-9

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  • DOI: https://doi.org/10.1007/s11082-015-0228-9

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