TY - JOUR
T1 - A paper-based chemiluminescence detection device based on S,N-doped carbon quantum dots for the selective and highly sensitive recognition of bendiocarb
AU - Al Yahyai, Iman
AU - Al-Lawati, Haider A.J.
AU - Hassanzadeh, Javad
N1 - Funding Information:
The authors wish to thank Sultan Qaboos University for the grant and nancial support of this work (IG/SCI/CHEM/19/01). The authors would also like to appreciate Dr Rengaraj Selvaraj for providing the required equipment to prepare QDs and thank Mr Abdul Rahman Al Nabhani for helping with the TEM experiments.
Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2021/8/21
Y1 - 2021/8/21
N2 - Bendiocarb, a type of carbamate pesticide, plays a crucial role in controlling a wide range of pests. Due to its harmful impact on humans and the environment, the need for inexpensive, portable, efficient and easy-to-use analytical devices has become essential. In this study, an environmentally friendly paper-based analytical device (PAD) with a chemiluminescence (CL) sensing platform was investigated and characterized for the facile, reliable and sensitive detection of the bendiocarb pesticide. It is based on the enhancing effect of SO32- on the CL reaction of sulfur, nitrogen-doped carbon quantum dots (S,N-CQDs)-KMnO4 in acidic media. According to the experiments, S,N-CQDs and SO32- both are oxidized by KMnO4 to generate (S,N-CQDs∗) and (SO2∗) in their excited states, emitting at 510 nm. This indicates that an energy transfer process is taking place from SO2∗ to S,N-CQDs, resulting in a remarkably intensified CL emission. Interestingly, another emission was also observed around 660 nm contributing to about 20 to 25% of the total CL emission. This emission is related to the Mn2+∗ species produced by reducing MnO4-. The established multi-emission CL system was tested for analytical applications. Under optimal experimental conditions, a good linear relationship was observed between the bendiocarb concentration and the CL intensity of the established CL system. The linear detection range was 0.1-10 μg mL-1, with a limit of detection (LOD) of 0.02 μg mL-1. Finally, the method was successfully applied for the measurements of bendiocarb in water and juice samples. The obtained recovery values (97.5-105.5) verified the suitable accuracy of the results. This journal is
AB - Bendiocarb, a type of carbamate pesticide, plays a crucial role in controlling a wide range of pests. Due to its harmful impact on humans and the environment, the need for inexpensive, portable, efficient and easy-to-use analytical devices has become essential. In this study, an environmentally friendly paper-based analytical device (PAD) with a chemiluminescence (CL) sensing platform was investigated and characterized for the facile, reliable and sensitive detection of the bendiocarb pesticide. It is based on the enhancing effect of SO32- on the CL reaction of sulfur, nitrogen-doped carbon quantum dots (S,N-CQDs)-KMnO4 in acidic media. According to the experiments, S,N-CQDs and SO32- both are oxidized by KMnO4 to generate (S,N-CQDs∗) and (SO2∗) in their excited states, emitting at 510 nm. This indicates that an energy transfer process is taking place from SO2∗ to S,N-CQDs, resulting in a remarkably intensified CL emission. Interestingly, another emission was also observed around 660 nm contributing to about 20 to 25% of the total CL emission. This emission is related to the Mn2+∗ species produced by reducing MnO4-. The established multi-emission CL system was tested for analytical applications. Under optimal experimental conditions, a good linear relationship was observed between the bendiocarb concentration and the CL intensity of the established CL system. The linear detection range was 0.1-10 μg mL-1, with a limit of detection (LOD) of 0.02 μg mL-1. Finally, the method was successfully applied for the measurements of bendiocarb in water and juice samples. The obtained recovery values (97.5-105.5) verified the suitable accuracy of the results. This journal is
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U2 - 10.1039/d1ay00728a
DO - 10.1039/d1ay00728a
M3 - Article
C2 - 34286731
AN - SCOPUS:85113176952
SN - 1759-9660
VL - 13
SP - 3461
EP - 3470
JO - Analytical Methods
JF - Analytical Methods
IS - 31
ER -