Precise determination of hypochlorite in commercial bleaches with established traceability using automatic potentiometric titration

Gonzaga, Fabiano Barbieri; Cordeiro, Lidiane Rodrigues

doi:10.1007/s00769-014-1059-2

Cited by 12 publications

(3 citation statements)

References 14 publications

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“…Detection methods such as potentiometric, coulometric titrations and amperometric methods have several drawbacks, such as high detection limits (LODs) and require relatively long procedures and expensive devices to obtain results. On the other hand, fluorescence techniques offer high sensitivity, a rapid response, non‐invasiveness and can be used for in‐vivo biological cellular imaging .…”

Section: Introductionmentioning

confidence: 83%

Substituent Effects in BODIPY in Live Cell Imaging

Mulay

Yudhistira

Choi

et al. 2016

Chemistry An Asian Journal

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Small-molecule organoselenium-based fluorescent probes possess great capacity in understanding biological processes through the detection of various analytes such as reactive oxygen/nitrogen species (ROS/RNS), biothiols (cysteine, homocysteine and glutathione), lipid droplets, etc. Herein, we present how substituents on the BODIPY system play a significant part in the detection of biologically important analytes for in vitro conditions and live cell imaging studies. The fluorescence of the probe was quenched by 2-chloro and 6-phenyl selenium groups; the probe shows high selectivity with NaOCl among other ROS/RNS, and gives a turn-on response. The maximum fluorescence intensity is attained within ≈1-2 min with a low detection limit (19.6 nm), and shows a ≈110-fold fluorescence enhancement compared to signals generated for other ROS/RNS. Surprisingly, in live cell experiments, the probe specifically located and accumulated in lipid droplets, and showed a fluorescence turn-on response. We believe this turn-on response occurred because of aggregation-induced emission (AIE), which surprisingly occurred only by introducing one lipophilic mesityl group at the meso position of the BODIPY.

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Section: Introductionmentioning

confidence: 83%

Substituent Effects in BODIPY in Live Cell Imaging

Mulay

Yudhistira

Choi

et al. 2016

Chemistry An Asian Journal

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“…Barbieri Gonzaga and Rodrigues Cordeiro, 2014 [123] Calculation of measurement uncertainty in the determination of the concentration of a freshly prepared solution of sodium hydroxide using potassium hydrogen phthalate as the primary standard.…”

Section: Titrimetrymentioning

confidence: 99%

The Quality Control Laboratory

Bader¹

2020

Practical Quality Management in the Chemical Process Industry

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“…Hypochlorite (ClO À ) is widely utilized as a disinfectant and bleaching agent in our daily life and many manufacturing processes due to its antimicrobial activity, oxidizing property, reasonable persistence in water, ease of use, solubility in water, relative stability, no poisonous residuals, no color, low cost, etc. [1][2][3][4][5][6][7][8] Generally, a reasonable concentration of ClO À in water is in the range of 10 À5 to 10 À2 M. 2 Concentrated ClO À solutions are, however, potentially harmful to humans and animals. 9,10 On the other hand, ClO À is a biologically important reactive oxygen species.…”

Section: Introductionmentioning

confidence: 99%