Determination of Triethylamine, Pyridine and Dimethyl formamide content in Telmisartan by Headspace Gas chromatography using Flame Ionization Detector

Gopalakrishnan, J.; Devi, Shanti

doi:10.4172/pharmaceutical-sciences.1000133

Cited by 4 publications

(2 citation statements)

References 5 publications

(5 reference statements)

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“…The presence of pyridine in industrial products, especially medicinal products, is problematic . Although the determination of pyridine is currently undertaken using methods such as fluorometric/colorimetric detection, , optical fiber sensors, gas chromatography (GC), , liquid chromatography-mass spectrometry (LC-MS), GC-MS, , electrical field-stimulated liquid-phase microextraction, potentiometric sensors, and electrostatic precipitation, few methods are available for determining and quantifying pyridine. As the presence of pyridine and substituted pyridines has been recorded in the environment, therefore posing a potential human health threat, the development of a sensitive and accurate method to easily detect pyridine concentrations has become important.…”

Section: Introductionmentioning

confidence: 99%

Pyridine Detection Using Supramolecular Organic Frameworks Incorporating Cucurbit[10]uril

Liu

Chen

Shan

et al. 2021

ACS Appl. Mater. Interfaces

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A physical impregnation method is presented in this study, providing a facile approach to encapsulating functional guest molecules (GMs) into robust crystalline supramolecular organic frameworks incorporating cucurbit[10]uril (Q[10]-SOF). As Q[10]-SOF has high evaporated pyridine affinity under normal atmospheric pressure, pyridine molecules in this method were successfully encapsulated into the nanospace formed by GMs and Q[10]-SOF while retaining their crystal framework, morphology, and high stability. GMs@Q[10]-SOF solid materials were found to respond to pyridine, being suitable to be used as solid sensors. Notably, Q[10]-SOF loading with pyrene exhibited a unique response to pyridine along with dramatic fluorescence quenching; loading with dansyl chloride exhibited a unique response to pyridine along with significant fluorescence enhancement, having a quick response within 60 s. Our findings represent a critical advancement in the design of pyridine detection and adsorption for commercial gas identification and sensing.

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Section: Introductionmentioning

confidence: 99%

Pyridine Detection Using Supramolecular Organic Frameworks Incorporating Cucurbit[10]uril

Liu

Chen

Shan

et al. 2021

ACS Appl. Mater. Interfaces

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“…Spectrophotometry is a method for qualitative and quantitative analysis of a substance based on the absorbance of the substance measured at specific wavelengths [1] . Compared to chromatography and fluorescence analysis, spectrophotometry doesn't necessitate large analytical instruments, offers costeffective usage, and enables rapid on-site detection, thus enhancing its applicability [2][3][4] . However, during the actual determination process, turbidity, organic matter, and metal ions present in water samples can interfere with concentration determination results [5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Interference and Elimination of Fe3+ During Spectrophotometric Testing of Typical Pollutants in Coking Wastewater

Jiang,

Qiu,

Wang

et al. 2024

IJNRES

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As typical pollutants in coking wastewater, pyridine, indole, quinoline, and phenol have the advantages of rapidity and accuracy when determined in aqueous solution using UV spectrophotometry, but the presence of other substances in the water can interfere with the results. In this study, the spectrophotometric detection of pyridine, indole, quinoline, and phenol in coking wastewater was interfered with by Fe3+. To minimize this interference, hydroxylamine hydrochloride (HA) was selected as a masking agent to eliminate the interference of Fe3+ on the detection. The results indicated that spectrophotometric determination was significantly affected by Fe3+, and the level of interference increased with the concentration of Fe3+. HA can effectively reduce the absorbance of Fe3+ in the wavelength range of 250-350 nm. It exhibits a strong masking effect on the determination of Fe3+ in indole and phenol solutions, but it hampers the detection of pyridine and quinoline. HA has a better elimination effect on the interference of different concentrations of Fe3+, which can make the relative error of the determination results of indole and phenol less than 5% and 10%, respectively.

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Rapid quantitative detection of glucose content in glucose injection by reaction headspace gas chromatography

Xie

Gong

2017

Journal of Chromatography A

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Determination of Triethylamine, Pyridine and Dimethyl formamide content in Telmisartan by Headspace Gas chromatography using Flame Ionization Detector

Cited by 4 publications

References 5 publications

Pyridine Detection Using Supramolecular Organic Frameworks Incorporating Cucurbit[10]uril

Pyridine Detection Using Supramolecular Organic Frameworks Incorporating Cucurbit[10]uril

Interference and Elimination of Fe3+ During Spectrophotometric Testing of Typical Pollutants in Coking Wastewater

Rapid quantitative detection of glucose content in glucose injection by reaction headspace gas chromatography

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