FTIR spectroscopy in combination with a diamond tipped attenuated total reflectance (ATR) immersion probe was utilized to study was assigned to wagging vibration of Bd and its intensity was proportional to Bd concentration ([Bd]) in the range of 0.46–3.88 mol·L. The signal bands at 890 and...
Infrared absorption spectroscopy is a versatile analytical method that can identify different compounds in archaeological materials and sediments by measuring the portions of the infrared spectrum absorbed by specific molecules. This technique was developed in the 1930s for the characterization of industrial...
FTIR测试的扫描范围为4 000~400 cm-1,设定32次扫描次数,扫描背景光谱;将各组的标准测试样条切下一片薄片,保证薄片面积大于扫描窗口且平整即可;实验步骤:将样品覆盖在ATR附件反射晶体表面,利用附件夹具压紧后进行扫描取样,样品扫描时间约...
衰减式全反射-傅立叶变换红外光谱仪(ATR-FTIR)方法是一种首选的在线监测方法,因为它能够在液体环境中提供可靠的测量结果,即使在存在水吸收带的情况下也是如此。Octapharma 公司的 Gerhard Motkya 在本次网络研讨会上介绍了在线傅立叶变换红外线光谱仪作为监测超滤/渗滤 (UF/DF) 关键过程参数的一种方法。
FTIR-spectroscopy - IR-microscopy - microanalysis - ATR-spectroscopy - polymersTransmission FTIR-microscopy can be applied successfully for routine analysis of the different areas of a multilayer polymer film as used in packaging industry or for new flame resistant airplane wall covers and for other ...
The ATR-FTIR spectroscopy was then limited to predict their content (R2 = 0.78 and RPD = 2.09). During the AIS fraction preparation, phenolics were removed but some of them could bond to the cell wall and were considered as an artefact. The lignin prediction by ATR-FTIR was ...
Keywords:ATR/FTIR:infraredspectroscopy:determinationofpesticides;comparison 引言 1 基本原理 蔬菜中农药含量的测定,目前主要采用气相色 谱、高效液相色谱以及示波极谱法等,这些方法有的 灵敏度和准确性不够,有的虽然灵敏度较好,但样品 预处理繁琐,成本高,需时较长⋯。红外光谱主要反 映分子中C—H、N_H、O_H...
应用ATR-FTIR检测角质层成分,包括天然保湿因子(NMF)、角质层脂质、游离脂肪酸(FFA)和β/α比值;同时应用其他无创技术测量经表皮失水率(TEWL)、角质层含水量、角质层脂质、皮肤pH值和3种周围感觉神经纤维的电流感觉阈值和浅表皮肤血流灌注量等皮肤生理参数。分析角质层成分与总刺痛评分和总灼痛评分的Spearman相关系数,...
Fourier transform infra-red spectroscopy (ATR/FTIR) and scanning probe microscopy of parchment. e-PS. 2009;6:138–44.M Odlyha, C Theodorakopoulos, J de Groot, L Bozec and M Horton, `Fourier transform infrared spectroscopy (ATR/FTIR) and scanning probe microscopy of parchment', e-...
1.1本测试方法涵盖柴油中脂肪酸甲酯(FAME)生物柴油含量的测定。它适用于1.00至20体积%的浓度(见注1)。此过程仅适用于 FAME。脂肪酸乙酯 (FAEE) 形式的生物柴油会造成负面偏差。注 18212;使用适当的 ATR 样品附件,范围可能从 1 体积% 扩展到 100 体积%,但精度数据在高于 20 体积% 时不可用。1.2 以 SI ...