光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2015年
2期
497-501
,共5页
核磁共振%表面性质%弛豫时间%液相比表面积
覈磁共振%錶麵性質%弛豫時間%液相比錶麵積
핵자공진%표면성질%이예시간%액상비표면적
Nuclear magnetic resonance%Surface properties%Relaxation time%Specific surface area in the liquid
核磁共振（nuclear magnetic resonance）技术具有快速、精确、分辨率高等优点，并已不断成熟成为土壤分析、物质结构鉴定、食品分析和医学成像等领域重要的研究分析手段。本文通过介绍利用N MR技术研究液相环境中高分子聚合物在颗粒表面（主要为SiO2颗粒）的吸附、解吸及扩散等行为和利用NMR技术研究受污染土壤中水的摄取过程及土壤润湿性两大方面，综述了 N MR 技术在物质表面性质表征领域的重要应用，展现了NMR技术在高分子材料和环境领域中独特的重要作用。重点介绍基于NMR技术的Acorn比表面分析仪能够直接测定液相环境中物质的弛豫时间，反映物质的表面性质和结构特征，为解释污染物环境行为提供数据支持从而在环境领域发挥重要作用，展现出Acorn比表面分析仪相比于传统BET 法在测量环境和测量时间等方面的优越性，尤其是Acorn比表面分析仪可以反映液相环境中物质的表面性质和结构特征的重要特性，解决了传统BET法无法直接获得液相环境中物质的比表面积信息的难题，是液相环境中NMR技术在物质表面性质表征领域的新突破。对Acorn比表面分析仪在制药、化妆品材料和电子产品等方面的应用进行了分析，并在土壤有机质、药物和天然产物检测等方面对N MR技术的应用进行了展望。
覈磁共振（nuclear magnetic resonance）技術具有快速、精確、分辨率高等優點，併已不斷成熟成為土壤分析、物質結構鑒定、食品分析和醫學成像等領域重要的研究分析手段。本文通過介紹利用N MR技術研究液相環境中高分子聚閤物在顆粒錶麵（主要為SiO2顆粒）的吸附、解吸及擴散等行為和利用NMR技術研究受汙染土壤中水的攝取過程及土壤潤濕性兩大方麵，綜述瞭 N MR 技術在物質錶麵性質錶徵領域的重要應用，展現瞭NMR技術在高分子材料和環境領域中獨特的重要作用。重點介紹基于NMR技術的Acorn比錶麵分析儀能夠直接測定液相環境中物質的弛豫時間，反映物質的錶麵性質和結構特徵，為解釋汙染物環境行為提供數據支持從而在環境領域髮揮重要作用，展現齣Acorn比錶麵分析儀相比于傳統BET 法在測量環境和測量時間等方麵的優越性，尤其是Acorn比錶麵分析儀可以反映液相環境中物質的錶麵性質和結構特徵的重要特性，解決瞭傳統BET法無法直接穫得液相環境中物質的比錶麵積信息的難題，是液相環境中NMR技術在物質錶麵性質錶徵領域的新突破。對Acorn比錶麵分析儀在製藥、化妝品材料和電子產品等方麵的應用進行瞭分析，併在土壤有機質、藥物和天然產物檢測等方麵對N MR技術的應用進行瞭展望。
핵자공진（nuclear magnetic resonance）기술구유쾌속、정학、분변솔고등우점，병이불단성숙성위토양분석、물질결구감정、식품분석화의학성상등영역중요적연구분석수단。본문통과개소이용N MR기술연구액상배경중고분자취합물재과립표면（주요위SiO2과립）적흡부、해흡급확산등행위화이용NMR기술연구수오염토양중수적섭취과정급토양윤습성량대방면，종술료 N MR 기술재물질표면성질표정영역적중요응용，전현료NMR기술재고분자재료화배경영역중독특적중요작용。중점개소기우NMR기술적Acorn비표면분석의능구직접측정액상배경중물질적이예시간，반영물질적표면성질화결구특정，위해석오염물배경행위제공수거지지종이재배경영역발휘중요작용，전현출Acorn비표면분석의상비우전통BET 법재측량배경화측량시간등방면적우월성，우기시Acorn비표면분석의가이반영액상배경중물질적표면성질화결구특정적중요특성，해결료전통BET법무법직접획득액상배경중물질적비표면적신식적난제，시액상배경중NMR기술재물질표면성질표정영역적신돌파。대Acorn비표면분석의재제약、화장품재료화전자산품등방면적응용진행료분석，병재토양유궤질、약물화천연산물검측등방면대N MR기술적응용진행료전망。
Nuclear magnetic resonance (NMR)technology has been developed continuely because of its rapid,accurate and high resolution advantages,The technology has become an important method to analyze the soil properties,and to identify the struc-ture of matters,food analysis,medical imaging fields.This study summarized two aspects of the important applications of NMR in the characterization of the surface properties of materials.First,the use of NMR techniques for the adsorption,desorption and diffusion behaviors of polymer on solid particles (mainly SiO2 particles).Sencond,to investigate the wettability and water uptake progress of contaminated soils using NMR techniques.This study summarized the important applications of NMR tech-niques in the characterization of surface properties.It also showed the unique application in the field of polymer materials and en-vironment.This study introduced the measured method for the relaxation time of substance using acorn surface area analyzer in the liquid environment.It reflect the surface properties and structural features of substance.It also provided data support for the explanation of environmental behaviors of contaminants and thus,it played an important role in the environmental field.Com-pared to the conventional BET method,acorn surface area analyzer showed the advantages in terms of conditions and time meas-urement.Especially,traditional BET method cannot get the information of the specific surface area of substances in the liquid di-rectly,but acorn surface area analyzer solved the difficult problem.It is a new breakthrough in the field of characterization of the surface properties of materials by NMR in the liquid.We analyzed the application of acorn surface area analyzer in pharmaceuti-cals,cosmetic materials,electronic products because acorn surface area analyzer could reflects the important characteristics of the surface properties and structural features of substance.And we provide the prospective of the applications of NMR tech-niques in organic matter of soils,drug and natural products detecting.
