Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My Custom Filters

Edit custom filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1967 1
1970 1
1973 1
1975 3
1976 4
1977 2
1978 1
1979 3
1981 1
1982 1
1983 2
1984 2
1985 3
1986 3
1987 4
1988 3
1989 5
1990 6
1991 4
1992 6
1993 8
1994 4
1995 7
1996 8
1997 10
1998 5
1999 14
2000 24
2001 26
2002 15
2003 16
2004 22
2005 28
2006 33
2007 34
2008 37
2009 42
2010 47
2011 62
2012 80
2013 65
2014 88
2015 118
2016 113
2017 129
2018 143
2019 156
2020 164
2021 158
2022 154
2023 151
2024 172
2025 275
2026 91

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

2,273 results

Results by year

Filters applied: . Clear all
The following terms were not found in PubMed: chemometrics+Chemometrics+conversion, factor+ginsenosides+Panax, ginseng+single
Page 1
A multi-dimensional liquid chromatography/high-resolution mass spectrometry approach combined with computational data processing for the comprehensive characterization of the multicomponents from Cuscuta chinensis.
Wang M, Xu XY, Wang HD, Wang HM, Liu MY, Hu WD, Chen BX, Jiang MT, Qi J, Li XH, Yang WZ, Gao XM. Wang M, et al. J Chromatogr A. 2022 Jul 19;1675:463162. doi: 10.1016/j.chroma.2022.463162. Epub 2022 May 19. J Chromatogr A. 2022. PMID: 35635871
Moreover, CCS prediction (www.allccs.zhulab.cn) provided more possibilities to distinguish 12 pairs of isomers in the lack of reference standards. The 2D-LC/IM-QTOF-MS approach enabled the collection of five dimension of data related to each component (t(R) by HILIC …
Moreover, CCS prediction (www.allccs.zhulab.cn) provided more possibilities to distinguish 12 pairs of isomers in the lack of reference
Multicomponents of spin-spin relaxation, anisotropy of the echo decay, and nanoporous sample structure.
Aptekarev T, Furman G, Sokolovsky V, Panich A, Xia Y. Aptekarev T, et al. Res Sq [Preprint]. 2023 May 10:rs.3.rs-2893081. doi: 10.21203/rs.3.rs-2893081/v1. Res Sq. 2023. PMID: 37214947 Free PMC article. Preprint.
In this case, there is no need to analyze the anisotropy of the relaxation time T2, the determination of which is a rather complicated problem in multicomponent decays. Despite multicomponent signals, the fitting parameter associated with the size and shape o …
In this case, there is no need to analyze the anisotropy of the relaxation time T2, the determination of which is a rather complicate …
[Application of qNMR in Standard Materials Used for the Crude Drugs].
Suzuki A. Suzuki A. Yakugaku Zasshi. 2024;144(4):373-380. doi: 10.1248/yakushi.23-00151-5. Yakugaku Zasshi. 2024. PMID: 38556310 Free article. Review. Japanese.
Crude drugs and Kampo formulations derived from natural materials such as plants, animals, and minerals are multicomponent medicines that contain numerous chemical constituents. Quantitative determination of characteristic constituents for quality control is crucial …
Crude drugs and Kampo formulations derived from natural materials such as plants, animals, and minerals are multicomponent medicines …
Overview of the quality standard research of traditional Chinese medicine.
Gao H, Wang Z, Li Y, Qian Z. Gao H, et al. Front Med. 2011 Jun;5(2):195-202. doi: 10.1007/s11684-011-0134-x. Epub 2011 Jun 22. Front Med. 2011. PMID: 21695625 Review.
In this review, the progress of the development and the current status of quality standard as well as new quality control techniques introduced in Chinese Pharmacopoeia (2010 edition), such as liquid chromatography hyphenated mass spectrometry (LC-MS), fingerprint, quantit …
In this review, the progress of the development and the current status of quality standard as well as new quality control techniques …
Development of Different Separation Techniques for Impurity Profiling of Neostigmine Methylsulfate: A Comparative Study.
El Mously DA, Mostafa NM, Hassan NY, El-Sayed GM. El Mously DA, et al. J Chromatogr Sci. 2023 Dec 13;61(10):963-971. doi: 10.1093/chromsci/bmad029. J Chromatogr Sci. 2023. PMID: 37032123
For the TLC method, NEO and DAP were determined within the range of 1-11 mug/band, whereas 3-HPA was assayed over the range of 2-12 mug/band. The suggested methods can be securely utilized for routine analysis of the cited components in quality control laboratories. …
For the TLC method, NEO and DAP were determined within the range of 1-11 mug/band, whereas 3-HPA was assayed over the range of 2-12 m …
Progress and prediction of multicomponent quantification in complex systems with practical LC-UV methods.
Chen X, Yang Z, Xu Y, Liu Z, Liu Y, Dai Y, Chen S. Chen X, et al. J Pharm Anal. 2023 Feb;13(2):142-155. doi: 10.1016/j.jpha.2022.11.011. Epub 2022 Dec 5. J Pharm Anal. 2023. PMID: 36908853 Free PMC article. Review.
In the quality evaluation of complex samples, multicomponent quantitative analysis (MCQA) is usually needed. To overcome the difficulty in obtaining standard products, scholars have proposed achieving MCQA through the "single standard to determine
In the quality evaluation of complex samples, multicomponent quantitative analysis (MCQA) is usually needed. To overcome the d …
Multicomponent spectrophotometric determination of a ternary mixture of widely-prescribed cardiovascular drugs by four different methods.
El-Awady MI, El-Brashy AM, Abdallah NA, Ibrahim FA. El-Awady MI, et al. Spectrochim Acta A Mol Biomol Spectrosc. 2023 Jul 5;295:122573. doi: 10.1016/j.saa.2023.122573. Epub 2023 Mar 4. Spectrochim Acta A Mol Biomol Spectrosc. 2023. PMID: 36921519
Method (A) is based on the first derivative zero-crossing spectrophotometry for the determination of aspirin and atorvastatin at 247.4 nm and 302.6 nm, respectively. Ramipril was determined using the second derivative at 211 nm. ...For the determination of AS …
Method (A) is based on the first derivative zero-crossing spectrophotometry for the determination of aspirin and atorvastatin at 247. …
A gas-phase standard delivery system for direct breath analysis.
Streckenbach B, Sakas J, Perkins N, Kohler M, Moeller A, Zenobi R. Streckenbach B, et al. J Breath Res. 2022 Dec 29;17(1). doi: 10.1088/1752-7163/acab79. J Breath Res. 2022. PMID: 36579824 Free article.
Despite increasing usage, the SESI methodology still lacks standardization procedures for quality control and absolute quantification. In this study, we designed and evaluated a custom-built standard delivery system tailored for direct breath analysis. ...Ind …
Despite increasing usage, the SESI methodology still lacks standardization procedures for quality control and absolute quantification …
Neuro-nutraceutical potential of Asparagus racemosus: A review.
Majumdar S, Gupta S, Prajapati SK, Krishnamurthy S. Majumdar S, et al. Neurochem Int. 2021 May;145:105013. doi: 10.1016/j.neuint.2021.105013. Epub 2021 Mar 6. Neurochem Int. 2021. PMID: 33689806 Review.
Herbal standardization of the plant extract based on a specific biomarker can help elucidate the intricate biomolecular pathway and neurocircuitries being involved. This, followed by rigorous standardized clinical trials, fixing dosages, and determining contr …
Herbal standardization of the plant extract based on a specific biomarker can help elucidate the intricate biomolecular pathway and n …
Implementation strategies for WHO guidelines to prevent, detect, and treat postpartum hemorrhage.
Semrau K, Litman E, Molina RL, Marx Delaney M, Choi L, Robertson L, Noel-Storr AH, Guise JM. Semrau K, et al. Cochrane Database Syst Rev. 2025 Feb 26;2(2):CD016223. doi: 10.1002/14651858.CD016223. Cochrane Database Syst Rev. 2025. PMID: 40008632 Free PMC article.
Multicomponent implementation strategies may have little to no effect on maternal death (274,008 births, 2 trials; low-certainty evidence) compared to usual care. ...We do not know if multicomponent implementation strategies affect PPH 500 mL, PPH 1000 mL, or bl
Multicomponent implementation strategies may have little to no effect on maternal death (274,008 births, 2 trials; low-certainty evid
2,273 results