Results 71 to 80 of about 9,758 (222)

Legacy hexaconazole and tricyclazole residues hinder organic transition in paddy rice cultivation

Agricultural &Environmental Letters, Volume 11, Issue 2, December 2026.
Hexaconazole and tricyclazole residues persisted in paddy soil throughout the three consecutive growing seasons after a single foliar application. These findings, combined with potential animal feed risks from contaminated rice straw, indicate that the current 2‐year organic transitional period is insufficient, necessitating extended conversion periods
Suin Cho, Hye‐In Joe, Tae‐Hwa Kim, Jong‐Woo Park, Byeong‐Jin Bae, Byeung‐Kon Shin, Jeong‐In Hwang   +6 more
wiley   +1 more source

QuEChERS-ultra performance liquid chromatography-tandem mass spectrometry for the determination of erythromycin in fishy products(QuEChERS-超高效液相色谱串联质谱法测定水产品中红霉素残留)

Zhejiang Daxue xuebao. Lixue ban, 2017
建立了超高效液相色谱串联质谱法测定水产品中的红霉素残留量.样品用改进的QuEChERS（快速、简单、廉价、高效、灵活和安全）进行提取净化，经乙腈快速提取，无水硫酸镁和氯化钠除水后，用N-丙基乙二胺(PSA)净化，液相色谱串联质谱分析测定.在ACQUITY UPLC BEH C18色谱柱上进行分离，采用梯度洗脱，以0.1%甲酸水溶液和甲醇为流动相，电喷雾正离子电离，多反应监测模式，内标法定量.结果表明：红霉素浓度在0.5~50 µg • L-1时具有良好的线性关系，相关系数为0.997 6，定量限为0.3
YANZhongyong(严忠雍), ZHANGXiaojun(张小军), LIPeipei(李佩佩), FANGYi(方益), YULiang(喻亮), ZHANGShuai(张帅), ZHUYin(祝银), LIQiang(李强)   +7 more
doaj   +1 more source

Development of QuEChERS/HPLC technique for the determination of veterinary drug residues in beef samples [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2023
The application of antibiotics in animals for therapeutic and growth promotion purposes and to meet the need to increase meat production has been reported to cause the development of antibiotic resistance and other health risks due to the consumption ...
Abibat Monisola Junaid, Muinat Ajoke Aliu, Abdulrahman Ibraheem, Aisha Ishaq, Abubakar Lawal, Ala Yahya Sirhan, Guan Huat Tan, Aliru Olajide Mustapha, Hajarat Yetunde Kazum, Lukman Bola Abdulrauf   +9 more
doaj  

Lipid–Polymeric Nanoencapsulation of Standardized Camellia sinensis Extract Enhances Antiangiogenic Activity and Ocular Biocompatibility

Chemistry &Biodiversity, Volume 23, Issue 11, November 2026.
Workflow for the synthesis, characterization, and biological evaluation of lipid–polymeric nanoparticles loaded with a chemically standardized Camellia sinensis extract, showing improved colloidal stability, ocular biocompatibility, and antiangiogenic activity. Created by the authors using BioRender.com.
Sarah Kelly Fernandes, Anízio Bastos de Souza, Líbia Andressa Leandro de Paula, Alessandra Cristine de Souza Matavel, Marcos Paulo Gomes Mol, Mariana de Oliveira Almeida, Vanessa Heloísa Ferreira de Faria, Carolina Paula de Souza Moreira   +7 more
wiley   +1 more source

Assessment and validation of the p-QuEChERS sample preparation methodology for the analysis of >200 veterinary drugs in various animal-based food matrices

, 2023
The need remains for veterinary multi-residue methods that reliably quantify and identify veterinary drugs in the various animal-based food matrices. Such a method should not only show good method performance parameters (e.g.
Stephan Walker (14514648), Anton Kaufmann (14514639), Kathryn Maden (14514645), Mirjam Widmer (14514651), Patrick Butcher (14514642)   +4 more
core   +1 more source

Application of QuEChERS for Analysis of Contaminants in Dairy Products: A Review

Journal of Food Protection
The safety of dairy products is intrinsically linked to consumer health, and the exceedance of risk indicators, such as pesticide and veterinary drug residues, constitutes one of the primary issues affecting their quality and safety. To assess the safety of dairy products, it is crucial to develop accurate and reliable analytical methods for their ...
Jun Wang, Hai-yan Yang, Xin-dong Wang, Yi-fan Lv, Na Wei   +4 more
openaire   +3 more sources

Multistressor Interaction of Perfluorooctane Sulfonate (PFOS) and Temperature in Two Estuarine Fish Species, Red Drum ( Sciaenops ocellatus ) and Sheepshead Minnow ( Cyprinodon variegatus )

Environmental Toxicology, Volume 41, Issue 11, Page 1167-1178, November 2026.
ABSTRACT Perfluorooctane sulfonate (PFOS), a perfluoroalkyl substance (PFAS), is characterized by a long, fluorinated carbon chain which makes it ideal for oil‐ and water‐repellent products but detrimental for the environment, where it persists and accumulates in organisms.
Anna L. Thornton, Katy W. Chung, Peter B. Key, Emily C. Pisarski, Philip Tanabe, Marie E. DeLorenzo   +5 more
wiley   +1 more source

Simultaneous determination of nine nitrosamines in fermented vegetables by GC-MS/MS

Tạp chí Kiểm nghiệm và An toàn thực phẩm
In this study, nine nitrosamines were identified in fermented vegetables by gas chromatography tandem mass spectrometry (GC–MS/MS), using NDMA-d6 as the internal standard and a DB–17MS capillary column (30 m × 0.25 mm × 0.25 µm).
Nguyen Thi Hong Ngoc, Tran Trung Thanh, Bui Thi Thanh Phuong, Vu Hoang Lien Huong, Dang Thi Ngoc Lan, Pham Thi Thanh Ha, Tran Cao Son   +6 more
doaj   +1 more source

Interference of ATP‐Binding Cassette Transporter by Functional Nano‐Delivery System for High Efficiency Management of Insecticide‐Resistant Nilaparvata lugens

Advanced Science, Volume 13, Issue 59, 23 October 2026.
A ZIF‐90 nanocarrier delivers dinotefuran and suppresses NlABCG3 and NlABCH1 in resistant Nilaparvata lugens. This system combines pH/ATP‐triggered release with enhanced foliar retention, improving efficacy while sparing honeybees and promoting rice growth, offering a promising resistance‐breaking strategy.
Chengshuai He, Hejun Ren, Shuo Zhang, Jikang Cheng, Hui Zhang, Jiao Liu, Sijie Wang, Congfen Gao, Yanchao Zhang, Yunhao Gao   +9 more
wiley   +1 more source

Multi-residue analysis of 203 pesticides in strawberries by liquid chromatography tandem mass spectrometry in combination with the QuEChERS method

CyTA - Journal of Food, 2019
Herein, a QuEChERS (quick, easy, cheap, effective, rugged, and safe) procedure together with liquid chromatography and tandem mass spectrometry was applied to the multi-residue analysis of 203 pesticides in strawberries.
Nho-Eul Song, Miyoung Yoo, Tae Gyu Nam
doaj   +1 more source