scholarly journals Mn-DOPPED ZnS QUANTUM DOTS AS SENSITIVE SENSOR FOR DETERMINATION OF CIPROFLOXACIN IN PHARMACEUTICAL AND BIOLOGICAL SAMPLES

2021 ◽  
Vol 66 (2) ◽  
pp. 5130-5135
Author(s):  
Mian Muhammad ◽  
Behisht Ara ◽  
Faiz Ali ◽  
Izaz Ahmad ◽  
Hafeez Ullah
Keyword(s):  
Quantum Dots ◽  
Biological Samples ◽  
Sensitive Sensor

New and sensitive sensor for voltammetry determination of Methamphetamine in biological samples

2020 ◽  
Vol 31 (14) ◽  
pp. 10989-11000
Author(s):  
Maryam Haghighi ◽  
Mohsen Shahlaei ◽  
Mohsen Irandoust ◽  
Alireza Hassanpour
Keyword(s):  
Biological Samples ◽  
Sensitive Sensor

Determination of tryptophan and tyrosine by chemiluminescence based on a luminol–N-bromosuccinimide–ZnS quantum dots system

RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59286-59291 ◽  
Author(s):  
Shifeng Li ◽  
Min Xing ◽  
Haiyan Wang ◽  
Li Zhang ◽  
Yiman Zhong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
System P ◽  
Sensitive Sensor

ZnS QDs as a catalyst can catalyze luminol–NBS system CL, based on Trp and Tyr can inhibit this system CL intensity, we were designed a rapid and sensitive sensor for determination of Trp and Tyr.

scholarly journals N,N-Dimethyl Formamide Regulating Fluorescence of MXene Quantum Dots for the Sensitive Determination of Fe3+

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Xiaohui Gao ◽  
Xiaochun Shao ◽  
Longlong Qin ◽  
Yejun Li ◽  
Shengxiang Huang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Spectra ◽  
Dimethyl Formamide ◽  
Quenching Mechanism ◽  
X Ray ◽  
Highly Sensitive ◽  
Sensitive Sensor ◽  
Sensitive Determination ◽  
Induced Aggregation

AbstractDue to the wide use of iron in all kinds of areas, the design and construction of direct, fast, and highly sensitive sensor for Fe3+ are highly desirable and important. In the present work, a kind of fluorescent MXene quantum dots (MQDs) was synthesized via an intermittent ultrasound process using N,N-dimethyl formamide as solvent. The prepared MQDs were characterized via a combination of UV–Vis absorption, fluorescence spectra, X-ray photoelectron energy spectra, and Fourier-transform infrared spectroscopy. Based on the electrostatic-induced aggregation quenching mechanism, the fluorescent MQDs probes exhibited excellent sensing performance for the detection of Fe3+, with a sensitivity of 0.6377 mM−1 and the detection limit of 1.4 μM, superior to those reported in studies. The present MQDs-based probes demonstrate the potential promising applications as the sensing device of Fe3+.

Utilization of High Performance Ion Chromatography (HPIC) method for the determination of total sulphur content in different biological samples

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
A Sapcanin ◽  
E Kovac Besovic ◽  
M Pazalja ◽  
D Kresic ◽  
E Mujic ◽  
...  
Keyword(s):  
Ion Chromatography ◽  
Biological Samples ◽  
High Performance ◽  
Sulphur Content ◽  
Total Sulphur ◽  
Total Sulphur Content
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