葡萄糖/水溶液体系结构中红外光谱研究  

Mid Infrared Spectroscopy Study on the Solution Structure of Glucose/water System

作　　者：杜林楠 吉一帆 李穆婵 柴嘉欣 刘诗琪 于宏伟[1,2] DU Lin-nan;JI Yi-fan;LI Mu-chan;CHAI Jia-xin;LIU Shi-qi;YU Hong-wei(Shijiazhuang University College of Chemical Technology,Shijiazhuang Hebei Province 050035;Anesthetic Technology Innovation Center of Hebei Province,Shijiazhuang Hebei Province 050035)

机构地区：[1]石家庄学院化工学院,河北石家庄050035 [2]河北省麻醉药技术创新中心,河北石家庄050035

出　　处：《中国甜菜糖业》2024年第3期16-23,共8页China Beet & Sugar

摘　　要：采用中红外(MIR)光谱开展了葡萄糖/水溶液体系结构研究.实验发现,葡萄糖/水溶液体系主要官能团的红外吸收模式包括:水分子缔合O-H官能团伸缩振动模式(ν_(O-H-缔合-水))、葡萄糖分子CH_(2)官能团不对称伸缩振动模式(ν_(asCH2))、水分子O-H官能团弯曲振动模式(δ_(O-H-水))、葡萄糖分子CH2官能团弯曲振动以及OCH,CCH,COH等官能团几种变角振动偶合而成(δ_(CH2)+δ_(OCH)+δ_(CCH)+δ_(COH))、葡萄糖分子COH结构中C-O官能团伸缩振动模式(ν_(C-O-COH))、葡萄糖分子环状结构C-O官能团伸缩振动模式(ν_(C-O-葡萄糖环))、葡萄糖分子OCH官能团变形振动模式(δ_(COH))、葡萄糖分子C-O-H官能团变形振动模式(δ_(C-O-H))、葡萄糖分子C-C-H官能团和O-C-H官能团变角振动模式(δ_(C-O-H)+δ_(O-C-H)).随着葡萄糖/水溶液体系中,葡萄糖含量的增加,水分子间的氢键作用进一步增强.本项研究拓展了MIR光谱技术在葡萄糖/水溶液体系结构研究范围,具有重要的应用价值.The structure of glucose/water solution system was studied using mid infrared(MIR)spectroscopy.The infrared absorption modes of the main functional groups of glucose/water solution system include water mole-cule associative 0-H functional group vibration mode(V_(o-H-asocive-waer)),glucose molecule CH_(2)functional group asynmetrie stretching vibration mode(v_(xmcn2)),water molecule 0-H functional group bending vibration mode(δ_(o-H-water)),coupled with of CH_(2) functional group bending vibration and several bending vibration of func-tional groups such as OCH,CCH,COH etc(δ_(CH2)+δ_(OCH)+δ_(CCH)+δ_(COH)),C-0 functional groups in COH struc-ture stretching vibration mode(δ_(c-0-coH)),C-0 functional group on sugar ring structure stretching vibration mode(v_(c-o-sugaring)),OCH functional group bending vibration(δ_(ocH)),C-0-H functional group bending vi-bration(δ_(C-O-H)),C-C-H functional group and 0-C-H functional group bending vibration(δ_(C-O-H)+δ_(O-C-H)).As the glucose content increases in the glucose/water solution system,the hydrogen bonding between water molecules is further enhanced.This study expands the scope of MIR spectroscopy technology in the study of glucose/aqueous solution system structures and has important application value.

关 键 词：葡萄糖 水 中红外光谱 氢键作用 

分 类 号：O434.3[机械工程—光学工程]