The structure and coordination properties of N,N bis(N methylene 2 pyrrolidinyl)alanine have been studied. The results show that the title compound is stable, the geometry calculated by AM1 is in good agreement with e...The structure and coordination properties of N,N bis(N methylene 2 pyrrolidinyl)alanine have been studied. The results show that the title compound is stable, the geometry calculated by AM1 is in good agreement with experimental results. The atoms of O(1),O(15), O(19),O(20) in the molecule bond easily with metallic atoms. So the title compound can form stable complex with rare earth metal ions.展开更多
分别建立PU革中N-甲基吡咯烷酮残留量的气-质联用法(GC-MS)和高效液相色谱-二极管阵列检测器(HPLC-PDA)检测法,并比较了2种方法在实际检测过程中的优缺点,2种方法均可满足生态纺织品标准(Oeko-Tex Standard 100)对NMP检测要求,但中等极...分别建立PU革中N-甲基吡咯烷酮残留量的气-质联用法(GC-MS)和高效液相色谱-二极管阵列检测器(HPLC-PDA)检测法,并比较了2种方法在实际检测过程中的优缺点,2种方法均可满足生态纺织品标准(Oeko-Tex Standard 100)对NMP检测要求,但中等极性色谱柱的GC-MS法的灵敏度和色谱峰分离度均好于HPLC-PDA法。展开更多
基金The National Natural Science Foundation of China (Grant No.20573098)Science and Technology Foundationof the National Defense Key Laboratory of Propellant and Explosive Combustion in China(Grant No.9140C3501020901)
文摘The structure and coordination properties of N,N bis(N methylene 2 pyrrolidinyl)alanine have been studied. The results show that the title compound is stable, the geometry calculated by AM1 is in good agreement with experimental results. The atoms of O(1),O(15), O(19),O(20) in the molecule bond easily with metallic atoms. So the title compound can form stable complex with rare earth metal ions.
文摘分别建立PU革中N-甲基吡咯烷酮残留量的气-质联用法(GC-MS)和高效液相色谱-二极管阵列检测器(HPLC-PDA)检测法,并比较了2种方法在实际检测过程中的优缺点,2种方法均可满足生态纺织品标准(Oeko-Tex Standard 100)对NMP检测要求,但中等极性色谱柱的GC-MS法的灵敏度和色谱峰分离度均好于HPLC-PDA法。
基金supported by the National Natural Science Foundation of China (Nos.52274295,52104291,51874079)the Natural Science Foundation of Hebei Province,China (Nos.E2022501028,E2022501029,E2021501029,A2021501007,E2018501091,E2020501001,E2022501030)+4 种基金the Hebei Province Key Research and Development Plan Project,China (No.19211302D)Performance Subsidy Fund for Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province,China (No.22567627H)the Fundamental Research Funds for the Central Universities,China (Nos.N2223009,N2223010,N2123035,N2023040)the Science and Technology Project of Hebei Education Department,China (No.ZD2022158)the Central Guided Local Science and Technology Development Fund Project of Hebei Province,China (No.226Z4401G).