The real-time determination of d- and l-lactate based on optical weak measurement

2019 ◽  
Vol 11 (16) ◽  
pp. 2223-2230
Author(s):  
Zhen Qiao ◽  
Lixuan Shi ◽  
Tian Guan ◽  
Yang Xu ◽  
Cuixia Guo ◽  
...  
Keyword(s):  
Real Time ◽  
Optical Rotation ◽  
Weak Measurement ◽  
The Real ◽  
Time Determination

A simple transmission optical rotation (OR) configuration based on weak measurement was developed for the real-time determination of d- and l-lactate.

scholarly journals An Optical Chiral Sensor Based on Weak Measurement for the Real-Time Monitoring of Sucrose Hydrolysis

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 1003
Author(s):  
Dongmei Li ◽  
Chaofan Weng ◽  
Yi Ruan ◽  
Kan Li ◽  
Guoan Cai ◽  
...  
Keyword(s):  
Real Time ◽  
Optical Rotation ◽  
Critical Role ◽  
Weak Measurement ◽  
Wavelength Shift ◽  
Output Spectrum ◽  
Sucrose Hydrolysis ◽  
Central Wavelength ◽  
The Real ◽  
Hydrolysis Process

A chiral sensor with optical rotation detection based on weak measurement for the kinetic study of sucrose hydrolysis is presented. Based on the polarization modulation to the pre-selection state, the optical rotation of chiral sample was accurately determined through the central wavelength shift of the output spectrum. With this approach, the concentration response curves of sucrose and its hydrolysis products, i.e., fructose and glucose, were experimentally obtained for the hydrolysis analysis. By collecting the output spectrum with a frequency of 100 Hz and fitting the central wavelength shift synchronously during the measurement, the sucrose hydrolysis process was monitored in real time. Different hydrolysis conditions with varied concentration of invertase enzyme and citrate were implemented in this work. As a consequence, the real-time hydrolysis curves of the hydrolysis process with distinct velocities was achieved and analyzed. Such a kinetic monitoring about sucrose hydrolysis with optical rotation detection technology played a critical role in the researches involving sucrose, and also revealed the great potential of weak measurement in intersections, such as food safety inspection and chemical analysis.

scholarly journals The Real-Time Determination of Ionospheric Current Parameters during a Substorm

1973 ◽  
Vol 25 (4) ◽  
pp. 339-348 ◽  
Author(s):  
Frederick A. HANSER ◽  
Bach SELLERS ◽  
Roger P. VANCOUR
Keyword(s):  
Real Time ◽  
Ionospheric Current ◽  
The Real ◽  
Time Determination
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