UV-Vis reflectance spectroscopy has been widely used as a non-invasive method for the study of cultural heritage materials for several decades. In particular, FORS, introduced in the 1980s, allows to acquire hundreds of reflectance spectra in situ in a short time, contributing to the ...
Practical advice and peer-reviewed research on molecular and atomic spectroscopy techniques including Raman, infrared (IR), ICP-OES, ICP-MS, LIBS, XRF, and more.
电子跃迁产生的吸收光谱在紫外-可见光区,电子能级之间的跃迁 对应于可见光区(400-750nm)、近紫外光区(200-400nm)和 远紫外光区(10-200nm) 电子跃迁类型 生物分子的紫外-可见吸收光谱是3种电子跃迁的结果: 电 电子跃迁类型 子、 电子和n电子 FarUV (λ<190nm) UV/VIS (λ<190nm) 生色团与助色团 生...
紫外紫外--可见光谱可见光谱 (UV-vis spectroscopy) 杜海宁 梁毅 ((武汉大学生命科学学院武汉大学生命科学学院)) 现代生物学仪器分析中的 “四大谱”和 “三大法” 生物分子的结构分析生物分子的结构分析传统上最有效的方传统上最有效的方 法是 “四大谱”: 紫外-可见光谱、红外光谱、核磁共振波 谱...
1.14.3.1.2(iii)UV–Vis spectra Ultraviolet–visible (UV–Vis) spectroscopy was used to monitor synthesis and decomposition of dithiiranes25awith anabsorption maximumat 442nm, and25bwith an absorption maximum at 438nm<1995TL1867>. The UV–Vis spectra of dithiiranes21,8,23a, and22reveal the ab...
Libra S11和S12用于分析和工业实验室进行质量控制,它们具有更高的指标要求和更广的附件选择要求。 仪器具有测量吸光度、透过率、吸光度比率、因子浓度模式、吸光度对时间和波长扫描功能。增强的软件功能,包括标准曲线模式、反应速率斜率计算、多波长方程定义和用户方法保存,在质量控制实验室将很有有处。扫描、动力学和标...
For cross-conjugated systems, the value for the chromophore absorbing at the longest wavelength has to be calculated.Springer Berlin HeidelbergStructure Determination of Organic Compoundsdoi:10.1007/978-3-540-93810-1_9Ernö PretschPhilippe BühlmannMartin Badertscher...
UVCUVBUVA210-280nm280-320nm320-400nmVisible400-700nmFarRed700-1100nmNear-IR1100-2500nm(9000cm-4000cm)-1-1(increasinglyimportantformaterialsscience) Mid-IR2500-6000nm(4000-60cm)-1(unusualforelectronicabsorptions) 29/26/2010UV/Vis-NIRspectroscopy Routinelyusedinquantitativedeterminationsofsolutions. ...
S60紫外可见分光光度计(S60 UV-Vis spectroscopy) 英国柏楉有限公司上海代表处(Biochrom Ltd) 仪器种类:型号:S60 详细参数和报价申请演示询 价 产品简介 Biochrom Libra 系列产品在乎您的工作自由。除了完美的解决方案再无所求。从学术到工业,Biochrom都有相应的分光光度计满足您的特定应用需求-无需为预算不够而留...
UV-vis spectroscopy of carotenoids. Monographs on oceanographic methodology. In: Jeffrey SW, Mantoura RFC, Wright SW, editors. Phytoplankton Pigments in Oceanography: Guidelines to Modern Methods. UNESCO; Paris, France: 1997. pp. 578–594.Bjornland, T. (1997). UV-vis spectroscopy of carotenoids...