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Showing 205 to 214 of 214 entries
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Supercritical fluid chromatography for GMP analysis in support of pharmaceutical development and manufacturing activities.

Journal of pharmaceutical and biomedical analysis

Hicks MB, Regalado EL, Tan F, Gong X, Welch CJ.
PMID: 26412720
J Pharm Biomed Anal. 2016 Jan 05;117:316-24. doi: 10.1016/j.jpba.2015.09.014. Epub 2015 Sep 15.

Supercritical fluid chromatography (SFC) has long been a preferred method for enantiopurity analysis in support of pharmaceutical discovery and development, but implementation of the technique in regulated GMP laboratories has been somewhat slow, owing to limitations in instrument sensitivity,...

[Chemical constituents from Impatiens pritzllii var. hupehensis].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Zhang JC, He WJ, Liu YW, Tan NH.
PMID: 28845645
Zhongguo Zhong Yao Za Zhi. 2016 Jan;41(1):83-86. doi: 10.4268/cjcmm20160116.

Eight compounds were isolated from the 50% ethanol extract of Impatiens pritzllii var.hupehensis through various column chromatography methods including silica gel, Sephadex LH-20, and preparative HPLC. Their structures were elucidated as 2,6-dimethyl-2-vinyl-2,3,4,7-tetrahydrooxepine(1), 1,3,6-trihydroxy-7-methyl-anthraquinone(2),4-hydroxybenzaldehyde(3),4-(3-methoxy-4-hydroxyphenyl)-2-butanone(4), podophyllotoxin(5),scopoletin(6), α-spinasterol(7) and 3-O-β-D-glucopyranosyl-α-spinasterol(8) based on...

Development of high throughput 96-blade solid phase microextraction-liquid chromatrography-mass spectrometry protocol for metabolomics.

Analytica chimica acta

Mousavi F, Bojko B, Pawliszyn J.
PMID: 26388479
Anal Chim Acta. 2015 Sep 10;892:95-104. doi: 10.1016/j.aca.2015.08.016. Epub 2015 Aug 22.

In metabolomics, the workflow for quantitative and comprehensive metabolic mapping of cellular metabolites can be a very challenging undertaking. Sampling and sample preparation play a significant role in untargeted analysis, as they may affect the composition of the analyzed...

[Study on chemical constituents of Achillea alpina].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Chen XQ, Wang M, Zhang X, Guo WW, Wu X.
PMID: 26281557
Zhongguo Zhong Yao Za Zhi. 2015 Apr;40(7):1330-3.

Twelve compounds were isolated from the aerial parts of Achillea alpina by column chromatographies on silica gel, Sephadex LH-20, and semi-preparative HPLC. The structures were elucidated on the basis of spectral analysis. The compounds were identified as pellitorine(1), 8,9-dehydropellitorine(2),...

[UPLC characteristic fingerprint and chemical pattern recognition of Angong Niuhuang Pills].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Chai YS, Zeng HH, He YF, Shang X, Wan T, Yin Z, Fan CL, Ye WC.
PMID: 32237514
Zhongguo Zhong Yao Za Zhi. 2020 Feb;45(3):565-571. doi: 10.19540/j.cnki.cjcmm.20191217.305.

To establish the UPLC fingerprint of Zhongyi Angong Niuhuang Pills, in order to evaluate its quality by chemical pattern recognition. The method was developed on a column of Poroshell 120 EC-C_(18), with methanol-0.1% formic acid solution as the mobile...

[Application and study of HPLC fingerprint of Lonicera japonica for identification of geo-authenticity].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Xiang ZX, Gao SL.
PMID: 18652340
Zhongguo Zhong Yao Za Zhi. 2008 May;33(9):996-8.

OBJECTIVE: To establish a chromatographic fingerprint of Lonicera japonica and apply it to identify geo-authentic of L. japonica.METHOD: The HPLC was applied in chromatographic separation and data were analysed by "computed aided similarity evaluation" software.RESULT: There exited distinct difference...

[Identification of chemical constituents of Xiaoer Chiqiao Qingre Granules based on UHPLC-LTQ-Orbitrap-MS/MS and network pharmacology analysis].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Zhang Y, Zhou YY, Gao WY, Cui MY, Bian BL, Ni LQ, Wang K, Wang HJ, Si N, Zhao HY.
PMID: 34951243
Zhongguo Zhong Yao Za Zhi. 2021 Dec;46(23):6163-6177. doi: 10.19540/j.cnki.cjcmm.20211019.301.

This study aimed to qualitatively analyze the chemical components in Xiaoer Chiqiao Qingre Granules(XRCQ) by UHPLC-LTQ-Orbitrap-MS/MS and identify its material basis. The absorbed components in plasma were combined for exploring the potential action mechanism by integrated network pharmacology. ACQUITY...

Determination of Seven Organic Impurities in FD&C Yellow No. 6 by Ultra-High-Performance Liquid Chromatography.

Journal of AOAC International

Stover R, Petigara Harp B.
PMID: 34324669
J AOAC Int. 2021 Dec 11;104(6):1539-1548. doi: 10.1093/jaoacint/qsab092.

BACKGROUND: The U.S. Food and Drug Administration (FDA) batch certifies FD&C Yellow No. 6 (Y6) to ensure that the color additive meets requirements published in the Code of Federal Regulations (CFR), including specifications for seven organic manufacturing impurities consisting...

Identification of the constituents and the cancer-related targets of the fruit of Solanum nigrum based on molecular docking and network pharmacology.

Journal of pharmaceutical and biomedical analysis

Yang L, Gao S, Su Z, Qin X, Li Z.
PMID: 33892394
J Pharm Biomed Anal. 2021 Jun 05;200:114067. doi: 10.1016/j.jpba.2021.114067. Epub 2021 Apr 20.

The fruit of Solanum nigrum (FSN) exhibited a variety of biological activities. However, the chemical composition of the fruit, as well as the steroidal alkaloids responsible for the bioactivity and the mechanism of action need to be further studied....

Chemical profiling and quality evaluation of Zhishi-Xiebai-Guizhi Decoction by UPLC-Q-TOF-MS and UPLC fingerprint.

Journal of pharmaceutical and biomedical analysis

Sang Q, Jia Q, Zhang H, Lin C, Zhao X, Zhang M, Wang Y, Hu P.
PMID: 33280997
J Pharm Biomed Anal. 2021 Feb 05;194:113771. doi: 10.1016/j.jpba.2020.113771. Epub 2020 Nov 20.

Zhishi-Xiebai-Guizhi Decoction (ZSXBGZD), a traditional Chinese medicine (TCM) formula, has been used for treatment of coronary heart disease and myocardial infarction for nearly two thousand years. However, the chemical composition of ZSXBGZD is still unclear. In order to obtain...

Showing 205 to 214 of 214 entries