Optimization Method for Simultaneous Extraction and Detection of Imazapic and Imazapyr Herbicides in Soil and Water Using HPLC-UV with Verification of LC-MS

F.S.M., Bajrai; Ismail, B. S.; Jansar, Khairiatul Mardiana

doi:10.17576/jsm-2017-4612-10

Cited by 3 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Classical methods of chemical analysis, such as liquid chromatography and mass spectrometry [5,6], are employed for the detection of phenolic compounds, but these often involve high costs, complex equipment, and prolonged analysis times. This renders these methods unsuitable for routine and on-site analyses.…”

Section: Introductionmentioning

confidence: 99%

Development of an Innovative Biosensor Based on Graphene/PEDOT/Tyrosinase for the Detection of Phenolic Compounds in River Waters

Bounegru,

Iticescu,

Georgescu

et al. 2024

IJMS

View full text Add to dashboard Cite

Phenolic compounds, originating from industrial, agricultural, and urban sources, can leach into flowing waters, adversely affecting aquatic life, biodiversity, and compromising the quality of drinking water, posing potential health hazards to humans. Thus, monitoring and mitigating the presence of phenolic compounds in flowing waters are essential for preserving ecosystem integrity and safeguarding public health. This study explores the development and performance of an innovative sensor based on screen-printed electrode (SPE) modified with graphene (GPH), poly(3,4-ethylenedioxythiophene) (PEDOT), and tyrosinase (Ty), designed for water analysis, focusing on the manufacturing process and the obtained electroanalytical results. The proposed biosensor (SPE/GPH/PEDOT/Ty) was designed to achieve a high level of precision and sensitivity, as well as to allow efficient analytical recoveries. Special attention was given to the manufacturing process and optimization of the modifying elements’ composition. This study highlights the potential of the biosensor as an efficient and reliable solution for water analysis. Modification with graphene, the synthesis and electropolymerization deposition of the PEDOT polymer, and tyrosinase immobilization contributed to obtaining a high-performance and robust biosensor, presenting promising perspectives in monitoring the quality of the aquatic environment. Regarding the electroanalytical experimental results, the detection limits (LODs) obtained with this biosensor are extremely low for all phenolic compounds (8.63 × 10−10 M for catechol, 7.72 × 10−10 M for 3-methoxycatechol, and 9.56 × 10−10 M for 4-methylcatechol), emphasizing its ability to accurately measure even subtle variations in the trace compound parameters. The enhanced sensitivity of the biosensor facilitates detection and quantification in river water samples. Analytical recovery is also an essential aspect, and the biosensor presents consistent and reproducible results. This feature significantly improves the reliability and usefulness of the biosensor in practical applications, making it suitable for monitoring industrial or river water.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of an Innovative Biosensor Based on Graphene/PEDOT/Tyrosinase for the Detection of Phenolic Compounds in River Waters

Bounegru,

Iticescu,

Georgescu

et al. 2024

IJMS

View full text Add to dashboard Cite

show abstract

Negative Effects of Imidazolinone Herbicides Usage: Problems and Desicions

Bychkova,

Sazonova,

Pidenko

et al. 2023

Agrohimiâ

View full text Add to dashboard Cite

Currently, in industrial agricultural production, the best results are demonstrated by technological schemes for weed control based on the use of complexes of non-selective and selective herbicides in crop rotations. Herbicides of the imidazolinone group are well-known representatives of selective herbicides class. Commercial drugs based on them are widely represented on the market. At the same time, the negative consequences of using herbicides of the imidazolinone group are well known. They lead to disruption of natural soil biodiversity, inhibition of growth and decreasing in the yield of subsequent crops in crop rotations and the emergence of resistant weeds. The manuscript discusses the mechanisms of action of herbicides of the imidazolinone group, the current state of methods of their analysis in the soil, as well as approaches to reducing the negative effects of their usage.

show abstract

Morphological Variations of Weedy Rice (Oryza sativa ssp.) In Selected Rice Fields of Peninsular Malaysia

Ishak

Shamsudin

Sahid

et al. 2022

MAB

View full text Add to dashboard Cite

Weedy rice or locally known as ‘padi angin’ has been infesting rice granary areas in Malaysia for the last 20 years. The outbreak of weedy rice in the country started during the late 1980s in Projek Barat Laut Selangor (PBLS) due to the adoption of direct-seeding practices. Weedy rice can be characterized by its early maturing and easy-shattering traits. The objective of this study was to determine the morphological variations of weedy rice in selected granary areas located in Peninsular Malaysia. A total of 110 weedy rice accessions were collected from nine locations in three granary areas in Peninsular Malaysia (the Western, Eastern, & Northern regions). The collected weedy rice accessions were planted under greenhouse conditions to study their morphological features. Results of the present study indicated that 73.6% of weedy rice accessions were awnless while the remaining 26.4% produced awn. Selected traits such as plant height, flag leaf length, culm length, number of tillers, number of panicles, and panicle length were included in the Principal Component Analysis (PCA). The weedy rice accessions were grouped into three different clusters mainly Cluster 1: cultivated rice and awnless populations, Cluster 2: brown and red pericarp awnless populations, and Cluster 3: awned populations. The findings of this study may be used as guidance for farmers and researchers for designing sustainable weedy rice management in the future.

show abstract

Optimization Method for Simultaneous Extraction and Detection of Imazapic and Imazapyr Herbicides in Soil and Water Using HPLC-UV with Verification of LC-MS

Abstract: The residual activity of herbicides in soil and water may be detrimental to the environment. This issue has caught the attention of environmentalists and among the herbicides concerned are a mixture of Imazapic and Imazapyr, also

Cited by 3 publications

References 23 publications

Development of an Innovative Biosensor Based on Graphene/PEDOT/Tyrosinase for the Detection of Phenolic Compounds in River Waters

Development of an Innovative Biosensor Based on Graphene/PEDOT/Tyrosinase for the Detection of Phenolic Compounds in River Waters

Negative Effects of Imidazolinone Herbicides Usage: Problems and Desicions

Morphological Variations of Weedy Rice (Oryza sativa ssp.) In Selected Rice Fields of Peninsular Malaysia

Contact Info

Product

Resources

About