Simultaneous determination of vitamin B12 and its derivatives using some of multivariate calibration 1 (MVC1) techniques

Samadi‐Maybodi, Abdolraouf; Darzi, Sina

doi:10.1016/j.saa.2007.10.037

Cited by 20 publications

(6 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As mentioned, 373 papers were published in the period of 2005–2012. Some of these papers that include different area of applications and/or different journals are cited in this paper . These articles cover applications of PLS, PCR, orthogonal signal correction‐PLS, genetic algorithm‐PLS (GA‐PLS), multiple linear regression, and a few MVC‐ANN for simultaneous analysis using first‐order data.…”

Section: Review Of Some Published Materials By Iranian Chemists In DImentioning

confidence: 99%

A perspective on the growth of chemometrics in Iran: a glance into activities between 2005 and 2012

Naseri

Bahram

2013

Journal of Chemometrics

View full text Add to dashboard Cite

Although the first publications in the field of chemometrics by Iranian researchers go back nearly 23 years, Iran's chemometrics has experienced significant growth after the year 2000. More than 1500 papers have been published by Iranian chemometricians between 2005 and 2012 which is about seven times more than those published before 2005. The aim of this review is to present a perspective about Iran's chemometrics developments. The role of enthusiastic students, motivated professors, annual workshops, and international collaborations is discussed in this work. After introducing the first papers in each field of chememotrics, the papers published during 2005–2012 were screened, and some of them were introduced. Copyright © 2013 John Wiley & Sons, Ltd.

show abstract

Section: Review Of Some Published Materials By Iranian Chemists In DImentioning

confidence: 99%

A perspective on the growth of chemometrics in Iran: a glance into activities between 2005 and 2012

Naseri

Bahram

2013

Journal of Chemometrics

View full text Add to dashboard Cite

show abstract

“…Third, the maximum absorbance of the standard mixture solutions should not be exceeding the maximum absorbance reading of the instrument (i.e., does not overload). Finally, the concentration of the prediction mixtures should extend the same space as that of the calibration mixtures [27].…”

Section: Mixture Designmentioning

confidence: 99%

“…One of us (Hassani Nejad-Darzi) published a method for the simultaneous determination of vitamin B12, methylcobalamin, and B12 coenzyme that does not require a prior physical separation. Simultaneous determination of the above compounds was performed by PLSR-1, orthogonal signal correction (OSC)/PLSR, PCR, and hybrid linear analysis (HLA) [27]. There has been no report on the use of HPTLC-PLSR for the simultaneous determination of PETN and TNT in forensic explosive samples.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Pentaerythritol Tetranitrate and 2,4,6‐Trinitrotoluene by High Performance Thin Layer Chromatography and Partial Least Squares Regression (PLSR) Method

Nejad-Darzi

Chaloosi

Gholamian

2010

Propellants Explo Pyrotec

View full text Add to dashboard Cite

High performance thin layer chromatography (HPTLC) has been used for the simultaneous determination of pentaerythritol tetranitrate (PETN) and 2,4,6-trinitrotoluene (TNT). With this aim, the spots were developed on silica gel 60 F 254 layers with petroleum ether -acetone (2 : 1 v/v). Both PETN and TNT compounds were separated from other constituent materials, and were developed at the same speed, by this solvent system. Then ultraviolet (UV) spectra of these materials were recorded with TLC-scanner3 of CAMAG Company, and partial least squares regression-2 (PLSR-2) method was applied for the calibration and quantitative determination of these materials. The figure of merit (FOM) of this method was determined, and the method was applied for the analysis of an artificial sample.

show abstract

“…Therefore, it is essential to develop the sensitive, reliable, and simple approaches for the determination of V B12 in pharmaceuticals, foods and biological samples. The proposed methods for the quantitative determination of V B12 include high‐performance liquid chromatography (HPLC) , UV‐vis spectrophotometry , fluorescence spectrometry , chemiluminescence detection , electrochemical measurement , capillary electrophoresis inductively coupled plasma mass spectrometry (CE‐ICP‐MS) , radioassay , enzyme‐linked immunosorbent assay (ELISA) , and so on. As well known, several advantages, such as low cost, easy operation, good stability and high sensitivity, are involved in electrochemical analysis .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of Vitamin B12 Based on Cu²⁺‐Involved Fenton‐like Reaction

Kou

Xiangmei

et al. 2019

Electroanalysis

View full text Add to dashboard Cite

Poly(thionine) (PTH) film was generated on the electrochemically activated glassy carbon electrode (GCE(ea)) by using the two‐step cyclic voltammetric scan. Scanning electron microscopy, infrared spectral analysis and electrochemical measurement were employed to characterize the modified electrode surface. Hydroxyl radicals, which were produced by the Fenton‐like reaction, could induce the effective oxidization of PTH under near‐neutral condition and cause the notable enhancement of the cathodic peak current (Ipc) during the potential cycling process. Due to the binding of copper ions with the ligands liberated from VB12 and the inferior catalytic ability of Co2+ for the generation of hydroxyl radicals, the addition of VB12 into the Cu2+−H2O2 system inhibited the oxidization of PTH and resulted in the decrease of the Ipc value. The cathodic peak current change was linear with the logarithm of the VB12 concentration in the range of 10 nmol L−1–100 μmol L−1 with a detection limit of 2 nmol L−1 under optimal conditions. The developed sensor displayed excellent analytical performance including high sensitivity, good selectivity, acceptable reproducibility and satisfactory stability. The VB12 content in the injection sample was measured and the recovery values were in the range of 92.0 %–102 %.

show abstract

Simultaneous determination of vitamin B12 and its derivatives using some of multivariate calibration 1 (MVC1) techniques

Cited by 20 publications

References 44 publications

A perspective on the growth of chemometrics in Iran: a glance into activities between 2005 and 2012

A perspective on the growth of chemometrics in Iran: a glance into activities between 2005 and 2012

Simultaneous Determination of Pentaerythritol Tetranitrate and 2,4,6‐Trinitrotoluene by High Performance Thin Layer Chromatography and Partial Least Squares Regression (PLSR) Method

Electrochemical Determination of Vitamin B12 Based on Cu²⁺‐Involved Fenton‐like Reaction

Contact Info

Product

Resources

About

Simultaneous determination of vitamin B12 and its derivatives using some of multivariate calibration 1 (MVC1) techniques

Cited by 20 publications

References 44 publications

A perspective on the growth of chemometrics in Iran: a glance into activities between 2005 and 2012

A perspective on the growth of chemometrics in Iran: a glance into activities between 2005 and 2012

Simultaneous Determination of Pentaerythritol Tetranitrate and 2,4,6‐Trinitrotoluene by High Performance Thin Layer Chromatography and Partial Least Squares Regression (PLSR) Method

Electrochemical Determination of Vitamin B12 Based on Cu2+‐Involved Fenton‐like Reaction

Contact Info

Product

Resources

About

Electrochemical Determination of Vitamin B12 Based on Cu²⁺‐Involved Fenton‐like Reaction