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Michelle Espiritu

January 28, 2018

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Literature Review #1

A Spectral Shift – Based
Electrochemiluminescence Sensor for Hydrogen Sulfide

Chenga
Ma, Wanwan Wu, Yujiao Peng, Min – Xuan Wang, Gang Chen, Zixuan Chen, and

Jun
– Jie Zhu

Purpose

            The
purpose of this experiment was to detect a reliable quantitative analysis using
a sensing strategy of a luminescence wavelength.

Summary

Electrochemiluminescence
(ECL) is a luminescence produced in a solution that is enhanced by the
combination of electrochemistry and chemiluminescence to provide different interpretations
to arrive at specific luminescence methods which provides various advantages. One
of its advantage is that the ECL has great positioning control and its timing on
the production light gives a better multianalyte detection and/or imaging
result. A classic ECL gives off negative errors as a result of the production and
detection of high intensity of the instrument that was being used and/or the
change in the environment. In order to obtain a better and more accurate
results in a classic ECL, ECL ratiometric sensing and ECL emission was done to
outweigh the disadvantages such as the intensity being altered in a continuous
or repeated test; due to ECL ratiometric sensing and ECL emission accuracy of
the luminescence result is greatly improved.

According to the
journal, A Spectral Shift-Based
Electrochemiluminescence Sensor for Hydrogen Sulfate (Cheng Ma, et al.), “in
the preparation for the experiment, it is consisted of three steps:
synthesis of  nanoparticles, modification of Amino acid of  nanoparticles, and preparation of @GO composite
material”. The Spectral Shift – Based Electrochemiluminescence Sensor
was used to confirm the testing of hydrogen sulfide to determine its components
and quality, where “where the ECL emission peak shift is used as the readout,
instead of the classic ECL intensity”.

Critique

First of all, this
was a very informative piece of research and experiment that was conducted. But
it is very hard to understand due to the technical terms used and some readers
have no background with the study, therefore it is not relatable. The introduction
of this article is a long, thorough version of their conclusion. Its
repeatability, in my opinion, helps me better understand the purpose of the experiment.

This article was descriptive in its materials and methods. It clearly
enumerated the reagents and also included where they got it which shows that
its local which made their research more accessible. The experiment also
included a descriptive explanation of the apparatus to be used. The apparatus
as mentioned was homemade which makes it convenient to use.