Part No: P116Issued year: 2014File size: 0.45mbFile type: pdf
This poster details current sample preparation strategies for aminoglycoside antibiotics in meat developed in a collaborative effort with Biotage and Tyson Foods, Inc. Springdale Corporate Laboratory to optimize analyte recovery (>70%), minimize analyte suppression and maintain acceptable method precision.
FAST LC-MS 2014
Part No: AN833Issued year: 2015File size: 1.33mbFile type: pdf
This application note describes a polymer based-based weak exchange mixed-mode SPE protocol for the extraction of the aminoglycoside antibiotics gentamicin, streptomycin, spectinomycin and neomycin from chicken meat prior to LC-MS/MS analysis. Linearity and LOQ meet USDA-FSIS guidelines.
Part No: AN711Issued year: 2011File size: 0.11mbFile type: pdf
The following methods have been developed and optimized for the extraction of chloramphenicol from a variety of sample matrixes including milk, plasma, honey, urine, and shrimp/prawns for subsequent LC-MS/MS analysis. The methods are highly reproducible and offer low limits of detection.
Part No: AN709Issued year: 2010File size: 0.09mbFile type: pdf
The following methods have been developed for the selective extraction of clenbuterol from calf urine. The method is highly reproducible and offers clenbuterol recoveries of ≥ 70%.
MIP, Molecularly Imprinted Polymers, AFFINILUTE, SupelMIP,
Part No: AN714Issued year: 2011File size: 0.1mbFile type: pdf
The following methods have been developed and optimized for the extraction of fluoroquinolones (FQL) from a variety of sample matrixes including bovine kidney, honey, and milk. Example FQLs include sarafloxacin, norfloxacin, enrofloxacin, ciprofloxacin, lomefloxacin, and ofloxacin.
Part No: AN765Issued year: 2012File size: 0.22mbFile type: pdf
Malachite green (MG) and crystal (gentian) violet (CV) are triphenylmethane dyes used in aquaculture as fungicides and ectoparasiticides. They are rapidly metabolised to the leucomalachite green (LMG) and leucocrystal (gentian) violet (LCV) metabolites that persist in fish tissue. MG and CV are banned in many countries due to their mutagenicity and carcinogenicity, but may still be used illegally. Monitoring methodologies must be able to detect the compounds at 1 ng/g (US) or 2 ng/g (EU). In order to meet these LODs for complex matrices such as oily fish, and the low UV absorbance of the leuco forms, LC-MS-MS is the analytical method of choice. This application note focuses on ease of use when compared to other methods, and describes a QuEChERS based approach incorporating the use of aluminium oxide in enhanced dispersive SPE to reduce the levels of fat in the final extract. Additional cleanup is provided by polymeric EVOLUTE SPE columns, and the resulting extract demonstrated low ion suppression. Analyte recoveries of 60-105%, with low rsds, are achieved. The method is also applicable to Brilliant green.
Malachite green, Leuco malachite green, Crystal violet, Leuco crystal violet, Brilliant Green, EVOLUTE, EVOLUTE CX, QuEChERS, LC/MS/MS, Salmon, Contamination, Gentian violet, SPE, Solid Phase Extraction, Polymer, Resin,
Part No: AN710Issued year: 2010File size: 0.1mbFile type: pdf
Molecularly imprinted polymers (MIPs) are a class of highly cross-linked polymers- engineered to bind one target compound or a class of structurally related target compounds with high selectivity. Selectivity is introduced during MIP synthesis in which a template molecule, designed to mimic the analyte, guides the formation of specific cavities or imprints that are sterically and chemically complementary to the target analyte(s). It is therefore critical for analysts to use the methodology described below when using this phase. Conventional generic methodologies employed with conventional SPE chemistries (e.g., reversed-phase C18) will yield sub-optimal results when employed with this phase.
Part No: Issued year: 2017File size: 0.31mbFile type: pdf
This poster includes a simple Load-Wash-Elute solid phase extraction method using EVOLUTE EXPRESS WCX, for extraction of aminoglycoside antibiotics from a range of meat, milk and egg samples.
The sample preparation method is automated using Biotage Extrahera, with fast, sensitive analysis utilizing HILIC-MS/MS with MRM Spectrum Mode for ID confirmation (Shimadzu LCMS-8060).