This paper presents an analytical method which allows the determination of 11 quinolone antibiotic residue in bovine liver: pipemidic acid, ofloxacin, ciprofloxacin, danofloxacin, lomefloxacin, enrofloxacin, sarafloxacin, cinoxacin, oxolinic acid, nalidixic acid, and flumequine. The procedure involves a rapid and efficient pretreatment by Bond Elut QuEChERS kits. The homogenized liver sample wa...

24 25 A multi-residue screening method for 33 antibiotics from five different families 26 was employed to simultaneously determine sulphonamide, tetracycline, macrolide, 27 quinolone and chloramphenicol antibiotics using ultra high pressure liquid 28 chromatography tandem mass spectrometry. A simple sample preparation method was 29 developed using protein precipitation, centrifugation and solid...

A method has been developed and established for residue determination of benazolin-ethyl in soil and rape seed samples by gas chromatography with electron capture detection (GC-ECD). Limits of quantification of the method are 0.005 mg/kg for both soil and rape seed, which are sufficiently below the maximum residue limit, and the limit of detection is 0.0023 ng. The average recoveries of the ana...

Consumption of traces of veterinary drug residues through dairy products could have adverse effects on human health. There is, therefore, the need for routine monitoring of drug residues in dairy products on the market. In this study, fresh milk, cheese, and yogurt being sold at different points in the Kumasi metropolis were analyzed for residues of chloramphenicol, sulfathiazole, sulfamethoxaz...

The pesticide trichlorfon is readily degraded under experimental conditions to dichlorvos. A method has therefore been developed by which residues of trichlorfon in milk are determined as dichlorvos, using gas chromatography with μ-electron capture detection. The identification of dichlorvos was confirmed by mass spectrometry. Milk was extracted with acetonitrile followed by centrifugation, fre...

in this study, residues of imidacloprid (confidor) were measured in greenhouse cucumbers in mazandaran province, iran. confidor 200 sl was applied at the recommended rate (30.0 g ai ha-1) and its double (60.0 g ai ha-1). samples were collected at 1 h to 21 days after application and analyzed to determine the content and dissipation rate of imidacloprid. . analysis was carried out by the quecher...

Persistent organic pollutants, (POPs), are vast distributed compounds in environment which are recognized as one of the global pollution problems. These groups of materials being dangerous due to their high stability are accumulated in animal tissues and occurring in the food chain. One of the major paths through which persistent organic combinations access to human body is consuming polluted f...

Persistent organic pollutants, (POPs), are vast distributed compounds in environment which are recognized as one of the global pollution problems. These groups of materials being dangerous due to their high stability are accumulated in animal tissues and occurring in the food chain. One of the major paths through which persistent organic combinations access to human body is consuming polluted f...

American foulbrood (AFB) and European foulbrood (EFB) are destructive, infectious bacterial diseases in honeybees (Apis melifera), which can severely decrease the honey bee population and honey production (Gojmerac, 1980). American foulbrood spores are highly-resistant and can remain vital in combs and honey for many years. To control outbreaks of these infections in honeybee colonies, tetracyc...