A Natural Light Visible Colorimetric Responses Fluorescent Probe for Hydrazine Detection

Li, Yanan; Wu, Xiaoming; Yang, Shaoxiang; Tian, Hongyu; Sun, Baoguo

doi:10.2116/analsci.19p287

Cited by 13 publications

(5 citation statements)

References 35 publications

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“…[32,33] In our previous works, there are three fluorescent probes had developed for hydrazine detection. [34][35][36] But they are all fluorescent probes with a single reaction site. Double reaction site fluorescent probe has its own advantages.…”

Section: Introductionmentioning

confidence: 99%

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A Fluorescent Probe with a Double Reaction Site for Hydrazine Detection in Water Samples

et al. 2022

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A double reaction site fluorescent probe (probe PPEO) was developed. The probe detects hydrazine by reaction with an α, β-unsaturated ketone and o-aminophenyl. Probe PPEO was a rare two reaction site hydrazine fluorescent probe. The strategy of double reaction sites can improve the atomic utilization of the probe. The limit of detection (LOD) of probe PPEO for hydrazine was 10.40 nM, which below the limited standard. The fluorescence of the probe solution changes from colourless to yellowish-brown with different concentrations of N 2 H 4 . Furthermore, probe PPEO can be used to detect the content of N 2 H 4 in tap water, river water and mineral water.

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Section: Introductionmentioning

confidence: 99%

“…In our previous works, there are three fluorescent probes had developed for hydrazine detection [34–36] . But they are all fluorescent probes with a single reaction site.…”

Section: Introductionmentioning

confidence: 99%

A Fluorescent Probe with a Double Reaction Site for Hydrazine Detection in Water Samples

et al. 2022

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“…Small molecule-based probes can detect hydrazine due to the toxin's nucleophilic behavior by reacting with it to produce a visual change in colour making them potentially more costeffective and user-friendly. 6,[22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] While uorescence-based methods have the advantage of being highly sensitive, an optical response based on a simple change in the colour of a material can be more suitable for 'naked-eye' detection. A method that combines both optical techniques would provide a heightened level of reliability.…”

Section: Introductionmentioning

confidence: 99%

A dual-mode visual detector for toxic hydrazine

2021

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“…Various instrument‐based methods to determine the concentration of hydrazines have been reported in the past. These mainly include spectrophotometric [2–4] and fluorescence techniques [5–11]. Out of these two techniques, spectrophotometric techniques are preferred as they provide reproducible results with good selectivity and high sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Catalyst Free Single Step Specific Determination of Hydrazine in UH 25 blend and Determination of Propellant Grade UH 25 blend Using Thiophenes with Active Carbonyl Groups

Selvasekarapandian¹,

Reddy²,

Munirathinam³

2021

Propellants Explo Pyrotec

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Hydrazine and its derivatives such as monomethyl hydrazine (MMH), unsymmetrical dimethyl hydrazine (UDMH), and UH25 (a blend of 75 % UDMH and 25 % hydrazine hydrate by w/w) namely hydrazines are used as fuels (in liquid form) for rocket stages and satellites. They are hypergolic and well‐known toxic compounds. Workplace atmospheres involving vapours / liquid forms of these hydrazines need to be routinely monitored and screened. Simple, economical, and rapid kinetic spectrophotometric techniques are developed to meet the requirements by using thiophene‐3‐carboxaldehyde and 3‐butenone (E)‐1,1,1‐trifluoro‐4‐(3‐thienyl) (CF3enone) and compared. Classical −CHO based technique is applied for UH25 blend (in aqueous medium) in the presence of an acid catalyst. CF3enone based technique is used to determine hydrazine (Hz) in UH25 (in organic medium) selectively at levels as low as 0.05 mM without any catalyst. Variables such as temperature and concentration are optimized to determine UH25 in the concentration range of 0.5 mM to 0.1 M for thiophene‐3‐carboxaldehyde and to determine Hz of UH25 blend in the concentration range of 0.1 mM to 0.6 mM for CF3enone. Minimum detectable limits are found for UH25 and Hz of UH25 blend in the respective studies. GC‐MS study is also carried out to meet the unequivocal identification requirement. Initial rate and fixed time methods are adopted as calibration procedures. Orders of the reactions are found in both studies. Both techniques are simple and rapid after the chemisorption process with derivatizing agents in which pre‐treatment, pre‐concentration, and extraction steps are not involved. Advantages of CF3enone based technique over aldehyde‐based classical technique are 1) requirement of the minimum concentration of derivatizing agent 2) no catalyst 3) selectivity and specificity towards hydrazine in UH25 blend 4) shortened analysis time 5) linear dynamic range at very low concentrations of UH25.

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A Natural Light Visible Colorimetric Responses Fluorescent Probe for Hydrazine Detection

Cited by 13 publications

References 35 publications

A Fluorescent Probe with a Double Reaction Site for Hydrazine Detection in Water Samples

A Fluorescent Probe with a Double Reaction Site for Hydrazine Detection in Water Samples

A dual-mode visual detector for toxic hydrazine

Catalyst Free Single Step Specific Determination of Hydrazine in UH 25 blend and Determination of Propellant Grade UH 25 blend Using Thiophenes with Active Carbonyl Groups

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