Spectrophotometric Determination of Chromium in Water, and Pharmaceutical Samples Using 1‐Naphthol

Kanchi, Suvardhan; Ramanaiah, S.; Kumar, K. Suresh; Rekha, D.; Bhagan, Umayur; Naidu, G. R. K.; Naidu, G. Krishnamurthy; Sastry, B. S.; Chiranjeevi, P.

doi:10.1155/2005/140534

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…This means that there was no interference by the water sample matrix. For the purpose of comparison, the reference method was used for analyzing the samples (Suvardhan, et al, 2005) and came out with the results presented in Table (6). The results demonstrate a strong agreement between the results arrived at by the proposed method and those of the reference method.…”

Section: Applicationmentioning

confidence: 99%

The Spectrophotometric Determination of Chromium (vi) Using N, N-diethyl-p-phenylenediamine in Synthetically Prepared Wastewater, And Tap Water

Saleem

2021

uod

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The DPD (N, N-diethyl-p-phenylenediamine) is introduced in the present study as an analytical reagent for the direct, rapid, easy, and sensitive spectrophotometric detection of hexavalent chromium Cr (VI) species which is health hazard. The oxidization of the colorless DPD (N, N-diethyl-pphenylenediamine) reagent with Cr (VI) results in a red color DPD radical (DPD •+ ) at pH 4.39. The color intensity is directly proportional to the Cr (VI) concentration. By utilizing a UV-Vis spectrophotometer, the measurement of the produced DPD •+ can be identified in term of quantity at 551 nm. The linear calibration graphs for 0.2 -2 mg. L −1 of Cr (VI) are obtained with a correlation coefficient value of 0.9997. The molar absorption coefficient and Sandell's sensitivity are 2.5449x10 4 L.mol −1 cm −1 and 0.028 mg. Cr (VI), cm −2 , respectively. The present work develops, optimizes, and validates a new spectrophotometric method for determining Cr (VI) in the samples of the synthetically prepared wastewater and tap water. The method is effectively applied and the findings are statistically evaluated with those of the reference method.

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Section: Applicationmentioning

confidence: 99%

The Spectrophotometric Determination of Chromium (vi) Using N, N-diethyl-p-phenylenediamine in Synthetically Prepared Wastewater, And Tap Water

Saleem

2021

uod

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“…The samples were used directly to measure the metal ions by the method. Then these water samples were spiked by adding known amount of chromium (VI) and determined by the proposed method and a reported method (Suvardhan et al 2005). Percentage recoveries of chromium (VI) in spiked water samples are tabulated and shown in Table 3.…”

Section: Analysis In Spiked and Natural Water Samplesmentioning

confidence: 99%

Spectrophotometric method for the determination of chromium (VI) in water samples

Nagaraj

Aradhana

Shivakumar

et al. 2008

Environ Monit Assess

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A simple and sensitive spectrophotometric method for the determination of chromium has been developed. The method is based on the diazotization of Dapsone in hydroxylamine hydrochloride medium and coupling with N-(1-Napthyl) Ethylene Diamine Dihydrochloride by electrophilic substitution to produce an intense pink azo-dye, which has absorption maximum at 540 nm. The Beer's law is obeyed from 0.02-1.0 microg mL(-1) and the molar absorptivity is 3.4854 L mol(-1) cm(-1). The Limits of quantification and Limit of detection of the proposed method are 0.0012 microg mL(-1) and 0.0039 microg mL(-1) respectively. The method has been successfully applied for the determination of chromium in water samples and the results were statistically evaluated with that of the reference method.

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Advances in spectrophotometric determination of Chromium( III ) and Chromium( VI ) in water: a review

Dawra¹,

Dabas

2022

International Journal of Environmental Analytical Chemistry

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Spectrophotometric Determination of Chromium in Water, and Pharmaceutical Samples Using 1‐Naphthol

Cited by 5 publications

References 9 publications

The Spectrophotometric Determination of Chromium (vi) Using N, N-diethyl-p-phenylenediamine in Synthetically Prepared Wastewater, And Tap Water

The Spectrophotometric Determination of Chromium (vi) Using N, N-diethyl-p-phenylenediamine in Synthetically Prepared Wastewater, And Tap Water

Spectrophotometric method for the determination of chromium (VI) in water samples

Advances in spectrophotometric determination of Chromium( III ) and Chromium( VI ) in water: a review

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