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Luận văn thạc sĩ rapid determination hexavalent chromium in tap water by using a microfluidic
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Mô tả chi tiết
THAI NGUYEN UNIVERSITY
UNIVERSITY OF AGRICULTURE AND FORESTRY
TA THI VIET NGA
RAPID DETERMINATION HEXAVALENT CHROMIUM
IN TAP WATER BY USING A MICROFLUIDIC DILUTION CHIP
BACHELOR THESIS
Study Mode : Full-time
Major : Environmental Science and Management
Faculty : Internatinonal Training and Development Center
Batch : 2011-2015
Thai Nguyen, September, 2015.
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THAI NGUYEN UNIVERSITY
UNIVERSITY OF AGRICULTURE AND FORESTRY
TA THI VIET NGA
Topic title:
RAPID DETERMINATION HEXAVALENT CHROMIUM
IN TAP WATER BY USING A MICROFLUIDIC DILUTION CHIP
BACHELOR THESIS
Study Mode : Full-time
Major : Environmental Science and Management
Faculty : Internatinonal Training and Development Center
Batch : 2011-2015
Superviors : Prof. Yuh-Chang Sun
Ph.D. Nguyen Huu Tho
Thai Nguyen, September, 2015.
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DOCUMENTATION PAGE WITH ABSTRACT
Thai Nguyen University of Agriculture and Forestry
Degree Program Bachelor of Environmental Science and Management
Student name Ta Thi Viet Nga
Student ID DTN 1153180061
Thesis Title
Rapid determination Hexavalent Chromium in tap
water by using a Microfluidic dilution chip
Supervisor (s)
Prof. Yuh-Chang Sun
Ph.D. Nguyen HuuTho
Abstract:
This study introduces about assessing the risk of tap water containing Chromium
residuals, development a microfluidic dilution chip for rapid determination of Cr6+
without the need of time-consuming and complex sample preparation procedures.
Based on the obtained result, it is good research with the other conventional
methods. Because the chemical instrumentation or analytical methods require
expensive equipment and troublesome manipulation, which is not suitable for
detection in house.
The study described a methodology of using a model of CO2-Laser Engraver to
ablation in poly(methyl methacrylate) - PMMA based on the effects of laser power
and processing speed on the depth and width of microchannels. Furthermore,
successfully application Hexavalent Chromium in water – Colorimetric Method
which can sense Cr6+ in stock solution of tap water with (R2 =0.9809) and
determination Hexavalent Chromium in tap water was confirmed with 108 % (Spike
50 ppb) and 105 % ( Spike 100 ppb) showed that both of two volumes followed a
positive direction for this research.
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Keywords
Microfluidic dilution chip, dilution chip, Gradients,
determination Hexavalent Chromium, tap water
Number of pages 46
Date of Submision September 30
th, 2015
Supervisor’s Signature
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ACKNOWLEDGEMENT
This thesis has been greatly conducted from the support as well as assistance of
many people whom I would sincerely like to give deep thanks here.
First of all, I would like to express sincere thanks to the school board Thai
Nguyen University of Agriculture and Forestry, Faculty of International Training and
Development; Advanced Education Program, thank the teachers that have imparted to
me the knowledge and valuable experience during the process of learning and
researching here.
In the process of implementing and completing thesis, I am deeply grateful to my
supervisor, Prof. Yuh-Chang Sun at Department of Biomedical Engineering and
Environmental Science, National Tsing Hua University (NTHU), Taiwan who has
spent a lot of time, created favorable conditions, take care, generous and enthusiastic
to guide me. In addition, I would like to say thanks to Ph.D. Nguyen Huu Tho for his
enthusiasm in guiding and correcting my report writing.
I sincerely thank Ph.D. Tsung-Ting Shih, an enthusiastic guider, he was the one
who has had a very positive influence on me and my orientation from the beginning on
suggesting and assisting me this interesting topic during implementation of the study.
I would gratefully like to thank Ping-Hung Chen, I couldn't gain new research
experiences and noticeably involve in a variety of fantastic work by practicing in
several new scientific instruments and chemically professional devices without him.
He continued to inspire along the way as well as his enthusiastic and responsibility.
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