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Synthesis of atrazine-HPCD inclusion and its bioactivity

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Abstract

The inclusion of atrazine with 2-hydroxypropyl-β-cyclodextrin (HPCD) was synthesized by ultrasonic method, and it was characterized by UV, XRD and 1H NMR. The solubility in water and the bioactivity of the inclusion were also studied here. The results indicated that the UV maximum absorption wavelength of the inclusion remained at 223 nm, while its intensity decreased. The XRD peaks of atrazine disappeared, weakened and shifted in the inclusion, and the chemical shift of H-3 and H-5 of cyclodextrin inner cavity led to the upfield. The characterization data showed that the atrazine-HPCD inclusion had already formed. At the same time, the solubility of the atrazine-HPCD inclusion in water became 20.08 times as that of atrazine. Moreover, the atrazine-HPCD inclusion had better herbicidal activity. When the concentration of the inclusion was 6.5 mg/mL, the inhibition ratios of the inclusion to taproot length, taproot fresh weight, sprout length and sprout fresh weight of barnyard grass were 66.96%, 57.22%, 70% and 57.53%, respectively, which were all higher than those of atrazine.

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Authors and Affiliations

  1. Material Science and Engineering College, Northeast Forestry University, Harbin, 150040, China

    Jinyan Zhang  (张金艳)

  2. College of Science, Heilongjiang Bayi Agricultural University, Daqing, 163319, China

    Jinyan Zhang  (张金艳), Hongmei Bi  (毕红梅) & Ping Zhang  (张 萍)

  3. College of Science, Northeast Forestry University, Harbin, 150040, China

    Bin Li  (李 斌)

Authors
  1. Jinyan Zhang  (张金艳)
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  2. Bin Li  (李 斌)
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  3. Hongmei Bi  (毕红梅)
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  4. Ping Zhang  (张 萍)
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Correspondence to Jinyan Zhang  (张金艳).

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Supported by the National Natural Science Foundation of China (No. 31370709).

Zhang Jinyan, born in 1968, female, Dr, Prof.

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Zhang, J., Li, B., Bi, H. et al. Synthesis of atrazine-HPCD inclusion and its bioactivity. Trans. Tianjin Univ. 20, 350–357 (2014). https://doi.org/10.1007/s12209-014-2401-9

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  • DOI: https://doi.org/10.1007/s12209-014-2401-9

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