Determination of Lead and Copper in <i>Ligusticum wallichii</i> by Laser-Induced Breakdown Spectroscopy

Wang, Jinmei; Xue, Shuwen; Zheng, Peichao; Chen, Yanying; Peng, Rui

doi:10.1080/00032719.2016.1254223

Cited by 23 publications

(15 citation statements)

References 25 publications

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“…After evaluating the standard deviations of the background, the detection limit of lead in R. officinale samples is determined to be 0.13 ppm under current experimental conditions according to the generally accepted 3σ rule, 43 which is 115-fold better than the detection limit of lead in Ligusticum wallichii (15 ppm) as determined using LIBS by Wang et al. 24…”

Section: Resultsmentioning

confidence: 99%

“…determined lead and copper concentrations in Ligusticum wallichii (Szechuan lovage) with LIBS. The detection limit of lead was determined to be 15 ppm, 24 worse than the 10 ppm the WHO determined is the permissible limit of lead in medicinal herbs. Lead in herb medicine or plant samples was also analyzed with LIBS by other researchers; the reported detection limits of lead were 5, 12, and 22.782 ppm, respectively.…”

Section: Introductionmentioning

confidence: 83%

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Rapid and Sensitive Analysis of Trace Leads in Medicinal Herbs Using Laser-Induced Breakdown Spectroscopy–Laser-Induced Fluorescence (LIBS-LIF)

et al. 2019

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Toxic metals in medicinal herbs are potentially harmful for people taking herbal medicines. In this work, laser-induced breakdown spectroscopy–laser-induced fluorescence (LIBS-LIF) spectroscopy was first applied to carry out rapid and sensitive trace lead analysis in medicinal herb samples. To overcome the problem of diversity on the sample size, shape, and density for different samples, original samples were pulverized to powder and then pressed into pellets for spectral analysis. A series of standard samples were self-made for building a calibration curve. As an exemplary study, lead in Rheum officinale was analyzed with LIBS-LIF spectroscopy with significantly improved analytical sensitivity. The R2 of the build linear calibration curve was 0.996 and the detection limit of lead in R. officinale was determined to be 0.13 ppm. The enhancement factor on the signal-to-background ratio was >100 under low lead concentrations if compared with LIBS analysis. The lead concentrations in several original R. officinale samples were quantitatively determined. This work demonstrated that LIBS-LIF can be successfully applied to carry out rapid, sensitive, and quantitative trace lead analysis for medicinal herbs.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 83%

Rapid and Sensitive Analysis of Trace Leads in Medicinal Herbs Using Laser-Induced Breakdown Spectroscopy–Laser-Induced Fluorescence (LIBS-LIF)

et al. 2019

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“…Liu's team has done a lot of research on LIBS technology in the rapid detection of natural drugs [87][88][89][90][91]. Wang et al [92,93] used LIBS to determine the contents of copper and lead in Rhizoma Chuanxiong and established a model in combination with multiple linear regression. Using LIBS in combination with PCA and an artificial neural network to analyze and identify the elemental compositions of Radix Angelicae Dangshen and Polygonum cuspidatum roots from different habitats and areas.…”

Section: Laser-induced Breakdown Spectroscopymentioning

confidence: 99%

Recent advances of novel technologies for quality consistency assessment of natural herbal medicines and preparations

et al. 2020

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Quality consistency is one of the basic attributes of medicines, but it is also a difficult problem that natural medicines and their preparations must face. The complex chemical composition and comprehensive pharmacological action of natural medicines make it difficult to simply apply the commonly used evaluation methods in chemical drugs. It is thus urgent to explore the novel evaluation methods suitable for the characteristics of natural medicines. With the rapid development of analytical techniques and the deepening understanding of the quality of natural herbs, increasing numbers of researchers have proposed many new ideas and technologies. This review mainly focuses on the basic principles, technical characteristics and application examples of the chemical evaluation, biological evaluation methods and their combination in quality consistency evaluation of natural herbs. On the bases of chemical evaluation and clinical efficacy, new methods reflecting their pharmacodynamic mechanism and safety characteristics will be developed, and gradually towards accurate quality control, to achieve the goal of quality consistency. We hope that this manuscript can provide new ideas and technical references for the quality consistency of natural drugs and their preparations, thus better guarantee their clinical efficacy and safety, and better promote industrial development.

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“…18 In the past few decades, LIBS was developed rapidly and widely used in space exploration, 19 steel industry, 20,21 environmental protection, [22][23][24] food safety, 25 and medical herbs. [26][27][28] Wang et al quantitatively analyzed Pb and Cu in Ligusticum wallichii by LIBS, and the limits of detection for Pb and Cu were 15.7 and 6.3 mg kg −1 , respectively. 26 Zheng et al quantitatively analyzed Cu and Pb in coptidis by reheated double pulse LIBS (RDP-LIBS), and the detection limit of Cu and Pb was 1.91 and 3.03 mg kg −1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

High-sensitivity analysis of mercury in medicinal herbs using nanoparticle-enhanced laser-induced breakdown spectroscopy combined with argon purging

Wang

Cai

et al. 2023

J. Anal. At. Spectrom.

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Determination of Lead and Copper in Ligusticum wallichii by Laser-Induced Breakdown Spectroscopy

Cited by 23 publications

References 25 publications

Rapid and Sensitive Analysis of Trace Leads in Medicinal Herbs Using Laser-Induced Breakdown Spectroscopy–Laser-Induced Fluorescence (LIBS-LIF)

Rapid and Sensitive Analysis of Trace Leads in Medicinal Herbs Using Laser-Induced Breakdown Spectroscopy–Laser-Induced Fluorescence (LIBS-LIF)

Recent advances of novel technologies for quality consistency assessment of natural herbal medicines and preparations

High-sensitivity analysis of mercury in medicinal herbs using nanoparticle-enhanced laser-induced breakdown spectroscopy combined with argon purging

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