方案摘要
方案下载应用领域 | 生物产业 |
检测样本 | 其他 |
检测项目 | |
参考标准 | / |
Introduction Generally, a sample for CD measurement needs to be in a liquid state to allow transmission measurement, more recently there has been increasing requirement for CD measurement of samples that are insoluble or may change structure in solution. These types of sample are best measured in solid state. Although CD measurement can be made in transmission for solid samples, there is a requirement for sample preparation; such as making a pellet and if sample dilution is required, sample recovery can be difficult. As an alternative, measurement using Diffuse Reflection (DR) CD is recommended. 1), 2) This application note illustrates the use of DRCD measurement with the DRCD-575 diffuse reflectance accessory (See Fig. 1.) optimized for the J-1500 CD spectrometer with the multi-probe simultaneous CD/LD measurement. DRCD uses incident light to illuminate a solid sample and
Introduction
Generally, a sample for CD measurement needs to be in a
liquid state to allow transmission measurement, more recently
there has been increasing requirement for CD measurement
of samples that are insoluble or may change structure in
solution. These types of sample are best measured in
solid state. Although CD measurement can be made in
transmission for solid samples, there is a requirement for
sample preparation; such as making a pellet and if sample
dilution is required, sample recovery can be difficult. As an
alternative, measurement using Diffuse Reflection (DR) CD
is recommended. 1), 2) This application note illustrates the
use of DRCD measurement with the DRCD-575 diffuse
reflectance accessory (See Fig. 1.) optimized for the J-1500
CD spectrometer with the multi-probe simultaneous CD/LD
measurement.
DRCD uses incident light to illuminate a solid sample and
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