Journal of Inorganic Materials, Volume. 37, Issue 5, 554(2022)
Figures & Tables(8)
1. SEM (A), TEM (B), HRTEM images (C), and elemental mappings of Ru (D) and N (E) elements and XRD pattern (F) of the as-prepared Ru-biomass carbon composite
2. Total XPS spectrum (A), high-resolution C1s (B), Ru3p (C) and N1s (D) XPS spectra of Ru-biomass carbon composite
3. Absorption spectra of the reaction system catalysis by Ru-biomass carbon composite (a), CuO/Pt composite (b), Ru nanoparticles (c), and biomass carbon (d)
4. Absorbances at 665 nm of the N2, air and O2 saturated TMB solutions with catalysis by Ru-biomass carbon composite
5. Relationship curves of pH (A), reaction time (B), reaction temperature (C), and catalyst amount (D) with the absorbance of the reaction system
6. Absorption spectra of the reaction system in the presence of 0, 10, 20, 30, 40, 50, 60, 70 and 80 ng/mL chlorpyrifos (A) and calibration plot of the absorbance at 665 nm varied with the chlorpyrifos concentration (B)
Table 1. Comparison of colorimetric methods with different nanozyme materials for detection of organophosphorus pesticides
View tableView in ArticleTable 1. Comparison of colorimetric methods with different nanozyme materials for detection of organophosphorus pesticides
Chromogenic system Analysis time/min Linear range/(ng·mL-1) Detection limit/(ng·mL-1) Ref. Gold nanoclusters 40 1500-45000 6000 [ 23 ]Acetylcholine 55 10000-140000 4000 [ 24 ]Cu-Ag/rGO 30 300-9000 1080 [ 25 ]Hemin regulated by oligonucleotide 62 2000-100000 600 [ 26 ]CuO/Pt 50 300-180000 238.8 [ 19 ]Fe-N-C 76 100-10000 97 [ 27 ]Cu NPs 10 300-3000 20.4 [ 28 ]Ru-biomass carbon composite 20 5-80 6.57 This work
Table 2. Results for detection of chlorpyrifos in peach (
n =5)View tableView in ArticleTable 2. Results for detection of chlorpyrifos in peach (
n =5)Sample Chlorpyrifos added /(ng·mL-1) Chlorpyrifos detected by proposed method/(ng·mL-1) Chlorpyrifos founded by GC-MS/(ng·mL-1) Recovery/% Honey peach 0 (5.9±0.15) (6.02±0.12) 10.0 (16.2±0.18) (16.05±0.10) 101.8 Nectarine 0 (9.98±0.07) (9.95±0.07) 10.0 (19.91±0.27) (20.1±0.27) 99.6 Peento 0 (4.96±0.11) (5.07±0.05) 10.0 (15.2±0.19) (15.07±0.25) 101.6
Tools
Get Citation
Copy Citation Text
Zhijun CAO, Zaijun LI.
Paper Information
Category: RESEARCH ARTICLE
Received: Jun. 6, 2021
Accepted: --
Published Online: Jan. 10, 2023
The Author Email: LI Zaijun (zaijunli@jiangnan.edu.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20