Chemiluminescence determination of naltrexone based on potassium permanganate oxidation

Campiglio, A

doi:10.1039/a706647c

Cited by 40 publications

(17 citation statements)

References 13 publications

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“…The effect of KMnO 4 concentration upon the CL intensity was examined in the range 0.025-0.35 mmol/L. The results showed that the signal/blank ratio of CL emission reached a maximum value when the concentration of KMnO 4 was 0.05 mmol/L, and higher concentrations of KMnO 4 resulted in a decrease of the CL emission intensity, owing to the KMnO 4 absorbing the emitted light (26,27). Therefore, 0.05 mmol/L KMnO 4 was used for subsequent work.…”

Section: Selection Of Acid Medium and Optimization Of Concentrationmentioning

confidence: 98%

Determination of tsumacide residues in vegetable samples using a flow‐injection chemiluminescence method

et al. 2007

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A sensitive, simple and rapid flow-injection chemiluminescence (FI-CL) method is described to determine tsumacide pesticide residue based on the CL reaction of the alkaline degradation product of tsumacide with acidic KMnO(4) when rhodamine 6G was present. Under the optimum conditions, the relative CL intensity is linear with the concentration of tsumacide in the range of 2.0 x 10(-3)-0.20 mg/L. The detection limit is 6.6 x 10(-4) mg/L (3sigma) and the relative standard deviation for 2.0 x 10(-2) mg/L tsumacide solution was 2.28% (intra-day) and 4.85% (inter-day). The proposed method has been applied to determine the residue of tsumacide in vegetable samples and the recovery test is very satisfactory.

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Section: Selection Of Acid Medium and Optimization Of Concentrationmentioning

confidence: 98%

Determination of tsumacide residues in vegetable samples using a flow‐injection chemiluminescence method

et al. 2007

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“…Recently, Hindson and Barnett reported a comprehensive and critical review on the wide range of analytical applications of KMnO 4 in CL reactions [12]. The nature of these reactions has been postulated to involve the following excited state intermediates: manganese (II) or a complex [4,13,14,15], singlet oxygen [16,17], sulfur dioxide [1,18], molecular nitrogen [19,20], and fluorescent oxidation products of the analyte [21]. Meixner and Jaeschke proposed the following mechanism to explain the CL reaction of sulfite with permanganate [22]:…”

Section: Introductionmentioning

confidence: 98%

Flow injection determination of papaverine based on its sensitizing effect on the chemiluminescence reaction of permanganate-sulfite

Zhuang

Zhang

et al. 2003

Anal Bioanal Chem

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A novel chemiluminescence (CL) method for the determination of papaverine (PAP) has been developed by combining the flow injection technique and its sensitizing effect on the weak CL reaction between sulfite and acidic permanganate. A mechanism for the CL reaction has been proposed on the basis of fluorescent and chemiluminescence spectra. The CL response is proportional to the concentration of PAP over the range 0.2-10 micro mol L(-1). The detection limit of PAP is 0.10 micro mol L(-1) (3 s) with a relative standard deviation (RSD) of 2.0% for 10 repetitive determinations of 1.0 micro mol L(-1) PAP. Interferences from other alkaloids in the opium, such as morphine and codeine, are negligible except that of narcotine. The method has been satisfactorily used for the determination of PAP in injections and compound liquorice tablets.

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“…It appears that the optimization conditions and the CL signal are much dependent on the system configuration as well as type of acid used. [36][37][38][39][40] Hence, the signal intensity of 20 μM pyrogallol was used for normalization of other signals. The optimization of the 3-step CL COD method system was carried out.…”

Section: The Optimization Conditions For 3-step CL Cod Methodsmentioning

confidence: 99%

A 3-Step Chemiluminescence Method for Chemical Oxygen Demand Measurement

et al. 2017

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Direct chemiluminescence emission from the reaction of acidic permanganate and organic compounds was employed for determining the chemical oxygen demand (COD) in water (1-step CL COD). Due to the diversity of organic pollutants in water, there are no standards for COD measurements, and many compounds do not show any chemiluminescence signal in the 1-step CL COD method. As a result, this method shows a low correlation with the conventional CODMn method. In this study, a new 3-step CL COD method was developed to overcome these drawbacks. The basic principle of the 3-step CL COD method is based on the principle of "back titration" in the CODMn method: (i) the sample is treated with permanganate under heating, (ii) the excess permanganate is treated with pyrogallol, and (iii) the excess pyrogallol is measured by the chemiluminescence reaction with permanganate. The reagent concentration, sample volume, and heating temperature were optimized, and the 3-step CL COD method successfully obtained the signal from some samples that cannot be detected by 1-step CL COD method. The calibration graph is linear in the range of 0 -12.86 mg/L with a detection limit of 0.082 mg/L. This method is continuous, sensitive and low cost compared with the conventional method, and is applicable for on-site monitoring. The effect of the chloride ion was investigated, and showed an insignificant effect after two-times dilution of high-salinity samples. The correlation with the CODMn method for various organic compounds showed a good coefficient of determination, R 2 = 0.9773 (n = 16).

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Chemiluminescence determination of naltrexone based on potassium permanganate oxidation

Cited by 40 publications

References 13 publications

Determination of tsumacide residues in vegetable samples using a flow‐injection chemiluminescence method

Determination of tsumacide residues in vegetable samples using a flow‐injection chemiluminescence method

Flow injection determination of papaverine based on its sensitizing effect on the chemiluminescence reaction of permanganate-sulfite

A 3-Step Chemiluminescence Method for Chemical Oxygen Demand Measurement

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