暗讽
发表于 2025-3-28 17:45:17
Mass spectrometry,triple quadrupole instruments costing several hundreds of thousands of pounds. The larger instruments offer higher mass ranges and increased specificity either by high resolution or by use of more involved MS experiments.
一瞥
发表于 2025-3-28 20:18:09
Analysis of anionics,This chapter deals with the analysis of some individual anionic surfactants as raw materials and in some formulated products, or obtained as fractions separated by ion exchange or otherwise. It is assumed that materials obtained from unknowns will have been identified by spectroscopy or other means.
Antagonist
发表于 2025-3-29 01:11:44
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手榴弹
发表于 2025-3-29 03:03:40
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integrated
发表于 2025-3-29 08:04:31
Infrared spectroscopy,Infrared (IR) spectroscopy is one of the most versatile and cost-effective instrumental analytical methods available to the analytical chemist. The traditional attractions of infrared are well known:
evasive
发表于 2025-3-29 12:53:57
Nuclear magnetic resonance (NMR) spectroscopy,NMR is a spectroscopic technique that uses radiation in the radio frequency region of the electromagnetic spectrum. Its use in the analysis of surfactants can be broken down into three main categories:
仔细阅读
发表于 2025-3-29 17:48:54
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Aggrandize
发表于 2025-3-29 23:19:22
Book 1994The analysis of surfactants presents many problems to theanalyst. This book has been written by an experienced team ofsurfactantanalysts, to give practical help in this difficult field.Readerswill find the accessible text and clear description ofmethods, alongwith extensive references, an invaluable aid in theirwork.
NICHE
发表于 2025-3-30 03:48:38
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flaunt
发表于 2025-3-30 06:16:43
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