Quality control techniques for routine analysis with liquid chromatography in laboratories
Abstract
The process of quality assurance should demonstrate that the method and the analytical instrument provide accurate and precise results, or whether deterioration occurs. For this, the quality procedure should include tests which provide information on the characteristic performance of the method. According to the recent literature, useful procedures contributing to the overall quality of analytical results are illustrated in relation with liquid chromatography. Parameters examined are carry-over, column statement, accuracy and precision. The performance of the whole system from the extraction to measurement of analytes of interest must be monitored with control charts. Data representing the routine performance of chromatographic equipment systems and method allow predicting long-term uncertainties and confidence intervals.
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Polar solvents extract more azadirachtin than nonpolar solvent from n-hexane defatted neem seeds.
“Another study investigated the effect of various solvents and found that polar solvents extract more azadirachtin than nonpolar solvent extracted from n-hexane defatted neem seeds suggesting solvent mixing maximizes azadirachtin yield 19 .”
From Simultaneous Extraction and Separation of Oil and Azadirachtin from Seeds and Leaves of<i>Azadirachta indica</i>using Binary Solvent Extraction (2019) · cites this paper as [19]
Azadirachtin is relatively more soluble in polar than non-polar solvents.
“This suggests that azadirachtin is relatively more soluble in polar than non-polar solvents.19”
From Simultaneous Extraction and Separation of Oil and Azadirachtin from Seeds and Leaves of<i>Azadirachta indica</i>using Binary Solvent Extraction (2019) · cites this paper as [19]
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Subramanian, S., Salleh, A. S., Bachmann, R. T., & Hossain, M. S. (2019) · Natural Product Sciences · doi:10.20307/nps.2019.25.2.150 · Cited by 15 · see citing works
- Authors
- Masson, P.
- Affiliations
- Unité de Service Analyses Végétales et Environnementales (FR)
- Corresponding author
- Masson, Pierre
- Venue
- Journal of Chromatography A
- Publisher
- Elsevier BV
- Published
- 2007-07
- Volume
- 1158
- Issue
- 1-2
- Pages
- 168-173
- ISSN
- 0021-9673 (ISSN-L)
- OpenAlex
- W2117992141
- Cited by
- 75
- References
- 0
- Citations by year
- 2026: 2 · 2025: 5 · 2024: 3 · 2023: 2 · 2022: 2 · 2021: 5 · 2020: 4 · 2019: 6 · 2018: 6 · 2017: 7 · 2016: 4 · 2015: 6 · 2014: 10 · 2013: 2 · 2012: 2
- FWCI
- 0.09
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Chromatography A (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- Topics
- Physical Sciences › Chemistry › Spectroscopy › Analytical Chemistry and Chromatography
- Physical Sciences › Chemistry › Analytical Chemistry › Analytical Methods in Pharmaceuticals
- Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Scientific Measurement and Uncertainty Evaluation
- Keywords
- quality control, quality assurance, liquid chromatography, routine analysis, carryover, column performance, accuracy, precision, control charts, method performance, uncertainty, confidence intervals
- MeSH terms
- Chromatography, Liquid, Quality Control
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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
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