Quantitation of cobalt in Chinese tea by surface‐enhanced Raman spectroscopy in combination with the spectral shape deformation quantitative theory

Liu, Qing; Chen, Zengping; Shi, Cai‐Xia; Chen, Yao; Yu, Ru‐Qin

doi:10.1002/jrs.5528

Cited by 3 publications

(3 citation statements)

References 29 publications

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“…SERS detection is a powerful spectroscopy technology by providing ultrasensitive and intrinsic chemical fingerprint information (Liu et al, 2018;Zuo et al, 2018). SERS-based assays are promising methods for immunoassays due to their rapid and sensitive analytical capabilities.…”

Section: Sers-based Microfluidic Immunoassaymentioning

confidence: 99%

Recent progress of microfluidic chips in immunoassay

Wang

et al. 2022

Front. Bioeng. Biotechnol.

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Microfluidic chip technology is a technology platform that integrates basic operation units such as processing, separation, reaction and detection into microchannel chip to realize low consumption, fast and efficient analysis of samples. It has the characteristics of small volume need of samples and reagents, fast analysis, low cost, automation, portability, high throughout, and good compatibility with other techniques. In this review, the concept, preparation materials and fabrication technology of microfluidic chip are described. The applications of microfluidic chip in immunoassay, including fluorescent, chemiluminescent, surface-enhanced Raman spectroscopy (SERS), and electrochemical immunoassay are reviewed. Look into the future, the development of microfluidic chips lies in point-of-care testing and high throughput equipment, and there are still some challenges in the design and the integration of microfluidic chips, as well as the analysis of actual sample by microfluidic chips.

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Section: Sers-based Microfluidic Immunoassaymentioning

confidence: 99%

Recent progress of microfluidic chips in immunoassay

Wang

et al. 2022

Front. Bioeng. Biotechnol.

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“…Lazarevska et al [ 44 ] described the deciphering the Raman spectrum of RJ and the fabrication of Ag‐polymer embedded RJ nanoparticles manifesting SERS. Liu et al [ 45 ] reported the quantitation of cobalt in Chinese tea by SERS in combination with spectral shape deformation theory. They expect that their proposed SERS platform can be a competitive alternative for the quantification of Co 2+ in food samples.…”

Section: Surface‐enhanced Raman Spectroscopymentioning

confidence: 99%

Recent advances in linear and nonlinear Raman spectroscopy. Part XIV

Nafie

2020

J Raman Spectroscopy

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This article is an overview of advances in Raman spectroscopy published in 2019 in the Journal of Raman Spectroscopy (JRS) and, in addition, trends over the past decade across journals that have published papers important to the field of Raman spectroscopy. The trends are based on statistical data of article counts obtained from Clarivate Analytic's Web of Science Core Collection by year and by subfield of Raman spectroscopy. Normally in this review, coverage would be provided for presentations involving Raman Spectroscopy at the following four international conferences previously scheduled for this year: the

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“…To improve the reliability and accuracy of SERS quantitative results, advanced calibration models, such as univariate ratiometric calibration model, [ 11 ] partial least squares (PLS) regression models [ 12 ] based on raw or standardized SERS measurements, [ 13,14 ] and multiplicative effects model for SERS (MEM SERS ), [ 15,16 ] have been applied to quantitative SERS analysis. Though these calibration models can enhance the quality of SERS quantitative results to some extent, they still suffer from some drawbacks, such as requirement of proper internal standards and complicated operation procedures.…”

Section: Introductionmentioning

confidence: 99%

Surface‐enhanced Raman spectroscopy coupled with advanced chemometric models for quantification of sulfide anion in environmental water samples

Shi

Tian

et al. 2021

J Raman Spectroscopy

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In this work, surface‐enhanced Raman spectroscopy (SERS) was employed for the quantification of sulfide anion (S2−) in aqueous samples. Silver nanoparticles modified with trithiocyanuric acid were used as the SERS enhancing substrate. To address the problem of poor reproducibility of SERS signal caused by the uncontrollable variations in physical properties of enhancing substrate, the performance of several calibration models for quantitative analysis of the SERS measurements of S2− samples were evaluated and compared. The calibration models studied were univariate ratiometric model based on the intensity ratio between the characteristic SERS peaks of trithiocyanuric acid, PLS models built on the raw and preprocessed SERS measurements, and the generalized ratiometric indicator based multiplicative effects model (MEMGRI). Experimental results showed that among the calibration models considered in this contribution, only MEMGRI model achieved accurate and precise concentration predictions for S2− in the spiked environmental water samples with recovery rates varying within the range of 94% to 106%. Therefore, it is reasonable to expect that the combination of SERS technique with MEMGRI model may be a competitive alternative for quantitative analysis of environmental samples.

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Quantitation of cobalt in Chinese tea by surface‐enhanced Raman spectroscopy in combination with the spectral shape deformation quantitative theory

Cited by 3 publications

References 29 publications

Recent progress of microfluidic chips in immunoassay

Recent progress of microfluidic chips in immunoassay

Recent advances in linear and nonlinear Raman spectroscopy. Part XIV

Surface‐enhanced Raman spectroscopy coupled with advanced chemometric models for quantification of sulfide anion in environmental water samples

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