An Acid-Inert Fluorescent Probe for the Detection of Nitrite

Cai, Meiyi; Chai, Xin‐Sheng; Wang, Xuedong; Wang, Ting

doi:10.1007/s10895-017-2071-9

Cited by 22 publications

(4 citation statements)

References 27 publications

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“…As important factors for an excellent probe, selectivity, and anti‐interference were also studied . As seen in Figure a, there were no fluorescence intensity changes with the addition of Br − , I − , Cl − , F − , CO 3 2− , NO 3 − , PO 4 2− , SO 4 2− , HPO 4 2− , urea, Fe 2+ , Ca 2+ , K + , Mg 2+ , Mn 2+ , and Na + .…”

Section: Resultsmentioning

confidence: 98%

A colorimetric fluorescent probe for rapid and specific detection of nitrite

Shi

Yang

et al. 2019

Luminescence

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The method of fluorescent probes has been an important technique for detection of nitrite (NO2−). As an important inorganic salt, excessive nitrite would threaten humans and the environment. In this paper, a colorimetric fluorescent probe P‐N (1,2‐diaminoanthraquinone) with rapid response and high selectivity, which could detect NO2− by visual colour changes and fluorescence spectroscopy is presented. The probe P‐N solution (pH 1) changed from pink to colourless with the addition of NO2− and fluorescence intensity at 639 nm clearly decreased. Good linear exists between fluorescence intensities and NO2− concentrations for the range 0–16 μM, and the detection limit was 54 nM (based on a 3σ/slope). Moreover, probe P‐N could also detect NO2− in real water samples, and results were all satisfactory. Probe P‐N shows great practical application value for detecting NO2− in the environment.

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Section: Resultsmentioning

confidence: 98%

A colorimetric fluorescent probe for rapid and specific detection of nitrite

Shi

Yang

et al. 2019

Luminescence

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“…Drop‐casting the nitrite solution on the white strips changed the strip‘s colour to visible blue, demonstrating the probe‘s utility as a turn‐on colorimetric probe (Figure 2). [29] The lowest concentration of nitrite ion solution that can be detected by this method was determined to be 9.4 nM.…”

Section: Different Strategies For Nitrite Sensingmentioning

confidence: 92%

Recent Advances in Designing Colorimetric Probes for Nitrite Ions

Kumar,

Dey

2023

Asian J Org Chem

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Nitrite (NO2‐) is an anionic species that holds paramount significance in cellular signalling pathways and have crucial physiological functions. Nevertheless, an excessive accumulation of nitrite ions can induce detrimental effects, including intrauterine growth restriction, birth abnormalities, and methemoglobinemia. Thus, quantitative detection of nitrite ions for in vivo and invitro studies is very important. This review presents a comprehensive overview of colorimetric techniques employed for the detection of nitrite ions. Various methodologies have been developed, encompassing diazo reaction‐based sensing, nitrosation reaction‐based sensing, redox reaction‐based sensing, non‐covalent interaction‐based sensing, and other approaches. Each method will be systematically discussed and critically evaluated in the context of this review.

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“…In recent years, different detection methods have been studied for quantitative analysis of nitrite, such as chromatography [13][14][15], spectrophotometry [16,17], colorimetry [18,19], microfluidic paper-based analyzer [20], electrochemical method [21,22] and fluorescence method [23]. Fluorescence analysis has low cost, simple operation and high sensitivity, among which the fluorescence analysis method based on quantum dots is widely used [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

The synthesis and application of L-cysteine graphene quantum dots for quantitative analysis of nitrite content in water

Jin,

Li,

et al. 2024

Phys. Scr.

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The limit standard of nitrite content in drinking water is an internationally recognized safety indicator. Some fluorescence analysis methods used for quantitative analysis of nitrite suffered from low anti-interference performance and inadequate specificity. In this article, L-cysteine graphene quantum dots have been synthesized and used to built a sensor system of ratiometric fluorescence with CdTe quantum dots. The L-cysteine graphene quantum dots were characterized by TEM and XPS. Results shown that the size of product is about 2 nm with homogeneous dispersion and a interplanar distance 0.235 nm, and there were hydroxyl, carboxyl, amino and sulfhydryl groups on its surface. Also, according to the linear association between nitrite concentrations and the ratio of fluorescence intensities at 421 and 570 nm (F421 nm/F570 nm), the quantitative analysis of nitrite in water has been realized, of which the linear range was 7.25 - 72.5 nmol/L, and the lowest detection limit was 3.012 nmol/L. This method with high sensitivity, selectivity, and anti-interference ability might be applied to analyze of nitrite in water quantitatively.

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An Acid-Inert Fluorescent Probe for the Detection of Nitrite

Cited by 22 publications

References 27 publications

A colorimetric fluorescent probe for rapid and specific detection of nitrite

A colorimetric fluorescent probe for rapid and specific detection of nitrite

Recent Advances in Designing Colorimetric Probes for Nitrite Ions

The synthesis and application of L-cysteine graphene quantum dots for quantitative analysis of nitrite content in water

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