Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method

An effective, simple and reliable simultaneous determination method for four active compounds, mesotrione, benoxacor, atrazine and S-metolachlor, in herbicide formulate was first-time developed and substantiated in current study using reversed-phased high performance liquid chromatography, following...

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Main Authors: Anum Hafeez, Sajid Iqbal, Iffat Abdul Tawab Khan, Qurrat-ul-Ain
Format: Article
Language:English
Published: National Centre of Excellence in Analytical Chemsitry 2025-06-01
Series:Pakistan Journal of Analytical & Environmental Chemistry
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Online Access:https://pjaec.pk/index.php/pjaec/article/view/457/369
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author Anum Hafeez
Sajid Iqbal
Iffat Abdul Tawab Khan
Qurrat-ul-Ain
author_facet Anum Hafeez
Sajid Iqbal
Iffat Abdul Tawab Khan
Qurrat-ul-Ain
author_sort Anum Hafeez
collection DOAJ
description An effective, simple and reliable simultaneous determination method for four active compounds, mesotrione, benoxacor, atrazine and S-metolachlor, in herbicide formulate was first-time developed and substantiated in current study using reversed-phased high performance liquid chromatography, following ICH guidelines. The chromatographic separation with fine resolution was conducted on a 5 μm C-18 column (L x id, 15 cm x 4.6 mm) using acetonitrile:water 70:30 (v/v) at 1.0 mL/min flow rate and wavelength 260 nm (UV detector). The retention times for mesotrione, atrazine, benoxacor and S-metolachlor were obtained as 1.90, 3.50, 3.95, and 5.10 min, respectively. Limits of detection of mesotrione, atrazine, benoxacor and S-metolachlor were found to be 2.57, 2.27, 1.28, and 1.32 µg/mL, whereas limits of quantitation were 7.80, 6.86, 3.86, and 4.01 µg/mL, respectively. The regression coefficients from calibration curves were ˃ 0.998 for all studied pesticides. The method reproducibility was evaluated as intra-day precision (0.85–1.52 %RSD) and inter-day precision (0.67–1.81 %RSD). The method accuracy was estimated through inter-laboratory comparison among three laboratories. The developed method is quite rapid, inexpensive, robust, precise, accurate, linear and sensitive for the purpose of quality control check of mesotrione, atrazine, benoxacor and S-metolachlor simultaneously in herbicide formulations.
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institution Kabale University
issn 1996-918X
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language English
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series Pakistan Journal of Analytical & Environmental Chemistry
spelling doaj-art-0a6ca4d847e94fbe9fc02a70b081bb0b2025-08-20T03:29:58ZengNational Centre of Excellence in Analytical ChemsitryPakistan Journal of Analytical & Environmental Chemistry1996-918X2221-52552025-06-01260110511610.21743/pjaec/2025.06.09Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC MethodAnum Hafeez0Sajid Iqbal1Iffat Abdul Tawab Khan2Qurrat-ul-Ain3Department of Chemistry, Federal Urdu University of Arts, Science & Technology, Gulshan Campus, Karachi-75300, Pakistan.Jinnah Government Degree College, Nazimabad, Karachi-74600, Pakistan.Department of Chemistry, Federal Urdu University of Arts, Science & Technology, Gulshan Campus, Karachi-75300, Pakistan.Department of Chemistry, Faculty of Science, University of Karachi, Karachi-75270, Pakistan.An effective, simple and reliable simultaneous determination method for four active compounds, mesotrione, benoxacor, atrazine and S-metolachlor, in herbicide formulate was first-time developed and substantiated in current study using reversed-phased high performance liquid chromatography, following ICH guidelines. The chromatographic separation with fine resolution was conducted on a 5 μm C-18 column (L x id, 15 cm x 4.6 mm) using acetonitrile:water 70:30 (v/v) at 1.0 mL/min flow rate and wavelength 260 nm (UV detector). The retention times for mesotrione, atrazine, benoxacor and S-metolachlor were obtained as 1.90, 3.50, 3.95, and 5.10 min, respectively. Limits of detection of mesotrione, atrazine, benoxacor and S-metolachlor were found to be 2.57, 2.27, 1.28, and 1.32 µg/mL, whereas limits of quantitation were 7.80, 6.86, 3.86, and 4.01 µg/mL, respectively. The regression coefficients from calibration curves were ˃ 0.998 for all studied pesticides. The method reproducibility was evaluated as intra-day precision (0.85–1.52 %RSD) and inter-day precision (0.67–1.81 %RSD). The method accuracy was estimated through inter-laboratory comparison among three laboratories. The developed method is quite rapid, inexpensive, robust, precise, accurate, linear and sensitive for the purpose of quality control check of mesotrione, atrazine, benoxacor and S-metolachlor simultaneously in herbicide formulations. https://pjaec.pk/index.php/pjaec/article/view/457/369crop protection agentsliquid chromatographymethod optimizationrobustnessuv detector
spellingShingle Anum Hafeez
Sajid Iqbal
Iffat Abdul Tawab Khan
Qurrat-ul-Ain
Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method
Pakistan Journal of Analytical & Environmental Chemistry
crop protection agents
liquid chromatography
method optimization
robustness
uv detector
title Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method
title_full Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method
title_fullStr Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method
title_full_unstemmed Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method
title_short Efficient Concurrent Analysis of Mesotrione, Atrazine, Benoxacor and S-Metolachlor in Herbicide Formulate: Developing and Validating a Reversed-Phased HPLC Method
title_sort efficient concurrent analysis of mesotrione atrazine benoxacor and s metolachlor in herbicide formulate developing and validating a reversed phased hplc method
topic crop protection agents
liquid chromatography
method optimization
robustness
uv detector
url https://pjaec.pk/index.php/pjaec/article/view/457/369
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