Standard Test Method for Determination of the Oxidation of Used Lubricants by FT-IR Using Peak Area Increase Calculation 被代替 标准号 ASTM D7214-06 2006年 发布单位 美国材料与试验协会 替代标准 ASTM D7214-07 当前最新 ASTM D7214-23 适用范围 ...
Standard Test Method for Determination of the Oxidation of Used Lubricants by FT-IR Using Peak Area Increase Calculation 被代替 预览ASTM D7214-07a前三页 标准号 ASTM D7214-07a 2007年 总页数 8页 发布单位 美国材料与试验协会 替代标准 ASTM D7214-07a(2012) ...
Also the stretching vibration calculated at FT-IR peak at 1155 and FT-Raman observed at the peak 1153, respectively. 3.6. UV–Visible studies The TD-DFT estimation has been done utilizing B3LYP/6-311G (d,p) model science to decide the low-lying energized conditions of target molecule [16...
Weak anharmonicity effects were displayed. The role played by the host matrix and by temperature on the peak positions was examined and discussed.doi:10.1007/978-3-7091-6840-0_117Enrico BandiniPaola BeneventiDanilo BersaniRosanna CapellettiLászló Kovács...
程为:将 IR 的 Si 探头安装到高压反应釜底部,在反 应釜中装入一定量的PET 瓶片、CH 3 OH、ZnAc 2 催化 剂,密封反应釜盖。为防止 CH 3 OH 高温下氧化,通入高纯氮进行置换和保护。在确保系统获得稳定的 红外背景信号之后,升温至所设定温度开始反应,反应在恒温恒压条件下进行,压力为反应温度下 CH 3 OH ...
At low metal ion concentrations (0.125 mM), the intensity of the BSA amide I peak (1651 cm−1, free BSA) and amide II peak (1545 cm−1, free BSA) was slightly reduced in the difference spectra of BSA–Ca2+ and BSA–Ba2+ complexes, while at a higher metal ion concentration (...
Furthermore, the peak at 3291.31 cm−1 corresponded to phenolic O–H stretching in hydroxychavicol from PBL [28]. The peak at 3469 cm−1 was related to the stretching bonds of OH groups in piperine from PNL [29]. The range of 2927.94 cm−1 to 2936 cm−1 suggested aliphatic C...
(8sq kms) with a peak amplitude of 2mgal. The magnetic feature covers an area of approximately 5km x 2km (10sq kms) with a peak response of +1000nT. Coincident magnetic and gravity response of this size and amplitudes is consistent with IRGS and IOCG (Iron Oxide Copper-Gold) type ...
43、me.A1.2.4 Fuel Contamination:A1.2.4.1 The possibility of fuel contamination may beindicated in diesel crankcase lubricants by measuring the peakat 810 cm-1. Spectral characteristics of diesel (Figs. A1.5 andA1.6) and other fuels noted in Table A1.1 have been found tovary. Work is curre...
The LO mode and the lower frequency shoulder peak of SiO 2 on Si was detected by the FT-IR-ATR method, and this band was simulated by a gradient layered and effective medium model. Interface roughness estimated from the shoulder bands of ATR spectra was in good agreement with the GIXR ...