Lysozyme-stabilized bimetallic gold/silver nanoclusters as a turn-on fluorescent probe for determination of ascorbic acid and acid phosphatase

Rhodamine B thiohydrazide (RBS) was firstly employed as turn-on fluorescent probe for hypochlorite in aqueous solution and living cells. It exhibits a stable response to hypochlorite from 1.0×10-6to 1.0×10-5M with a detection limit of 3.3×10-7M. The response of this probe to hypochlorite is fast and highly selective compared with other reactive oxygen species (such as.OH,1O2, H2O2) and other common anions (such as X-, ClO2-, ClO4-, NO3-, NO2-, OH-, Ac-, CO32-, SO42-).

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Silver nanoclusters functionalized with Ce(III) ions are a viable “turn-on-off” fluorescent probe for sulfide

Microchimica Acta ◽

10.1007/s00604-018-3149-z ◽

2018 ◽

Vol 186 (1) ◽

Cited By ~ 12

Author(s):

Jinshui Liu ◽

Huijuan Bao ◽

Dik-Lung Ma ◽

Chung-Hang Leung

Keyword(s):

Fluorescent Probe ◽

Silver Nanoclusters ◽

Turn On

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Spectrophotometric determination of phosphorus in coal and coal ash using bismuth-phosphomobybdate complex

Journal of the Serbian Chemical Society ◽

10.2298/jsc0301065m ◽

2003 ◽

Vol 68 (1) ◽

pp. 65-73 ◽

Cited By ~ 8

Author(s):

Randjel Mihajlovic ◽

Natasa Ignjatovic ◽

Marija Todorovic ◽

Ivanka Holclajtner-Antunovic ◽

Vesna Kaljevic

Keyword(s):

Aqueous Solution ◽

Ascorbic Acid ◽

Acid Medium ◽

Spectrophotometric Method ◽

Methyl Ketone ◽

Coal Ash ◽

Molar Absorptivity ◽

Stable Complex ◽

Tolerance Limits

A modified spectrophotometric method using the bismuth phosphomolybdate complex for the determination of phosphorus in coal and coal ash is suggested. Bismuth together with phosphate and molybdate forms a very stable complex in acid medium which turns blue ("molibdenum blue") by reduction with ascorbic acid. The apparent molar absorptivity of PBiMo is 1.66x104 dm3 mol-1cm-1 at 720 nm and 2.10x104 dm3 mol-1cm-1 at 670 nm isobutyl methyl ketone (MIBK). Interference caused by the ions present are within the tolerance limits (?2 %). Beer?s law is obeyed in the for concentration range to 0.6 ?g/mL (aqueous solution) and to 1.2 ?g/mL P (MIBK). The sensitivity of the proposed method is 0.0078 ?g/mL (aqueous solution) and 0.0066 ?g/mL (MIBK).

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Spectrophotometric Determination of Silicon by the Heteropoly Blue Method Using Ascorbic Acid as the Reducing Agent

Transactions of the Indian Ceramic Society ◽

10.1080/0371750x.1973.10840553 ◽

1973 ◽

Vol 32 (1) ◽

pp. 16-20 ◽

Cited By ~ 2

Author(s):

B. C. Sinha ◽

S. Dasgupta

Keyword(s):

Ascorbic Acid ◽

Spectrophotometric Determination ◽

Reducing Agent

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Merocyanine-based turn-on fluorescent probe for the sensitive and selective determination of thiophenols via a pKa shift mechanism

Talanta ◽

10.1016/j.talanta.2020.120965 ◽

2020 ◽

Vol 216 ◽

pp. 120965

Author(s):

Shengrui Zhang ◽

Qin Wang ◽

Fangfang Wu ◽

Jiajun Yang ◽

Tianyi Cheng ◽

...

Keyword(s):

Fluorescent Probe ◽

Selective Determination ◽

Turn On ◽

Pka Shift

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A turn-on Schiff base fluorescent probe for the exogenous and endogenous Fe3+ ion sensing and bioimaging of living cells

New Journal of Chemistry ◽

10.1039/d0nj04315j ◽

2020 ◽

Vol 44 (45) ◽

pp. 19642-19649

Author(s):

Lingjie Hou ◽

Tao Liu ◽

Yaling Gong ◽

Jin Li ◽

Chenhua Deng ◽

...

Keyword(s):

Aqueous Solution ◽

Schiff Base ◽

Fluorescent Probe ◽

Living Cells ◽

Naphthalic Anhydride ◽

Turn On ◽

Ion Sensing

A Schiff base fluorescent probe, namely naphthalic anhydride – (2-pyridine) hydrazone (NAH), has been synthesized and developed for the highly selective and sensitive monitoring of Fe3+ ions in an aqueous solution and living cells.

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