文字
发表于 2025-3-26 23:43:35
Mass spectrometry,panded the range of compounds that can be analyzed using mass spectrometry, there is still no single technique that is suitable for the analysis of all classes of dyes. Therefore, gas-phase ionization techniques such as electron impact and chemical ionization remain necessary and useful for the analysis of volatile compounds.
Meditate
发表于 2025-3-27 03:16:12
http://reply.papertrans.cn/16/1566/156590/156590_32.png
冲击力
发表于 2025-3-27 08:21:30
http://reply.papertrans.cn/16/1566/156590/156590_33.png
价值在贬值
发表于 2025-3-27 13:12:46
http://reply.papertrans.cn/16/1566/156590/156590_34.png
Endometrium
发表于 2025-3-27 16:21:11
http://reply.papertrans.cn/16/1566/156590/156590_35.png
BIAS
发表于 2025-3-27 19:23:26
X-ray powder diffraction of synthetic organic colorants,nately few, in the earlier work have been rectified. Suitable entries for this review may also have been overlooked mainly because the starting point for any work of this nature is ., and not all abstracters mention whether an article contains X-ray diffraction data.
flourish
发表于 2025-3-27 22:45:40
Near IR spectroscopy,yed in the Pariser-Parr-Pople molecular orbital (PPP MO) method. The molecular design of dyes having a predetermined absorption spectra thus becomes possible, and, consequently, the identification of dye chromophores from their absorption spectra also becomes possible.
commonsense
发表于 2025-3-28 06:04:12
Emission spectroscopy, spectroscopy studies. The introduction of new light sources (e.g. picosecond and femtosecond lasers) has enabled time-resolved fluorescence measurements to become commonplace, and improved capabilities in data processing and display have allowed the resolution and analysis of complex luminescent mixtures.
Clumsy
发表于 2025-3-28 07:34:52
Identification and analysis of diarylide pigments by spectroscopic and chemical methods, possible by changing the substituents. In addition, co-couplings are also prepared by the simultaneous reaction of two different couplers with the same aromatic diamine to form asymmetric pigments such as C.I. Pigment Yellow 174 and Yellow 188.
供过于求
发表于 2025-3-28 10:45:14
nducted for the water MDGs in 2003 but it had not been done for the other infrastructure sectors until recently. One of the main contributions of the AICD study has been to update the estimations for the water sector in 2008 and to conduct similar assessments for a very wide definition of infrastruc