isocratic | グラジエント溶離のはなし : 分析計測機器�

Keyword	CPC	PCC	Volume	Score	Length of keyword
isocratic	1.46	0.1	9512	9	9

Keyword	CPC	PCC	Volume	Score
isocratic	0.58	0.1	7484	82
isocratic elution	0.78	0.7	6320	53
isocratic meaning	0.83	0.8	3355	56
isocratic hplc	1.81	0.4	1851	29
isocratic gradient	0.64	0.3	2882	58
isocratic flow	0.46	0.1	7096	90
isocratic pump	0.22	0.8	4724	92
isocratic mode	0.8	0.5	9193	50
isocratic mobile phase	0.53	0.7	1976	54
isocratic vs gradient elution	0.45	0.8	3696	58
isocratic elution in hplc	0.59	1	6290	59
isocratic elution vs gradient elution	1.74	0.5	3386	39

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グラジエント溶離のはなし : 分析計測機器（分析装置）島津製作所
shimadzu.co.jp

https://www.an.shimadzu.co.jp/service-support/technical-support/analysis-basics/hplc/faq/tips1/lctalk-93intro/index.html

WEB一方，単一組成の移動相によって溶出させる溶離方法を「イソクラティック溶離（isocratic elution）」と呼びます。グラジエント溶離は，多成分や保持に差がある成分の一斉分析に有用な溶離方法です。

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High Performance Liquid Chromatography - Chemistry LibreTexts
libretexts.org

https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Supplemental_Modules_(Analytical_Chemistry)/Instrumentation_and_Analysis/Chromatography/High_Performance_Liquid_Chromatography

WEBAug 29, 2023 · Gradient Elution vs. Isocratic Elution. If the composition of the mobile phase remains constant throughout the HPLC separation, the separation is deemed an isocratic elution. Often the only way to elute all of the compounds in the sample in a reasonable amount of time, while still maintaining peak resolution, is to change the ratio of polar to ...

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Isocratic and Gradient HPLC / Difference between - What is HPLC
whatishplc.com

https://whatishplc.com/hplc-basics/difference-between-isocratic-and-gradient-hplc-system/

WEBIsocratic elution and gradient elution describe the characteristics of the mobile stage. The key distinction between isocratic and gradient elution is that isocratic elution refers to the maintenance of a recurring concentration in the mobile stage, whereas gradient elution refers to the maintenance of a varying concentration in the mobile stage.

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HPLC Basics | Thermo Fisher Scientific - US
thermofisher.com

https://www.thermofisher.com/us/en/home/industrial/chromatography/chromatography-learning-center/liquid-chromatography-information/hplc-basics.html

WEBAll HPLC separations are carried out in one of two modes, isocratic or gradient. Isocratic methods separate by using a consistent eluent composition during analysis, like 100% acetonitrile or a 50:50 mixture of acetonitrile to water. On the other hand, gradient methods include a change in the mobile phase composition across a separation.

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isocraticの意味・使い方・読み方 | Weblio英和辞書
weblio.jp

https://ejje.weblio.jp/content/isocratic

WEBisocraticの意味や使い方 ** 共起表現均一濃度の, 均一溶媒の関連語isocratically - 約684万語ある英和辞典・和英辞典。発音・イディオムも分かる英語辞書。

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Gradient Elution vs. Isocratic - What's the Difference? | This vs. That
thisvsthat.io

https://thisvsthat.io/gradient-elution-vs-isocratic

WEBIsocratic elution involves using a constant mobile phase composition throughout the entire chromatographic run. This means that the solvent composition remains unchanged, resulting in a constant elution strength. On the other hand, gradient elution involves changing the mobile phase composition over time.

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High-performance liquid chromatography - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/High-performance_liquid_chromatography

WEBA separation in which the mobile phase composition remains constant throughout the procedure is termed isocratic (meaning constant composition). The word was coined by Csaba Horvath who was one of the pioneers of HPLC. The mobile phase composition does not have to remain constant.

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How to Read HPLC Chromatograms | Waters - Waters Corporation
waters.com

https://www.waters.com/nextgen/us/en/education/primers/beginner-s-guide-to-liquid-chromatography/identifying-and-quantitating-compounds.html

WEBIsocratic and Gradient LC System Operation. HPLC uses two main elution modes: isocratic and gradient. Isocratic elution maintains a constant mobile phase throughout the run, as shown in Figure J-1. Gradient elution is the second type in HPLC, where the mobile phase composition changes during separation.

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12.5: High-Performance Liquid Chromatography - Chemistry …
libretexts.org

https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/12%3A_Chromatographic_and_Electrophoretic_Methods/12.05%3A_High-Performance_Liquid_Chromatography

WEBNov 13, 2021 · Choosing a Mobile Phase: Isocratic and Gradient Elutions. A separation using a mobile phase that has a fixed composition is an isocratic elution. One difficulty with an isocratic elution is that an appropriate mobile phase strength for resolving early-eluting solutes may lead to unacceptably long retention times for late-eluting solutes.

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Isocratic and gradient elution chromatography: A comparison in …
sciencedirect.com

https://www.sciencedirect.com/science/article/pii/S002196730600166X

WEBMar 24, 2006 · In this work, we compared the analytical properties of gradient and isocratic separations of a sample which can be done quite readily under isocratic conditions. We found that gradient elution gave a shorter overall analysis with similar resolution of the critical pair compared to isocratic elution without sacrificing repeatability in retention ...

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