The IMF’s April 2025 Regional Economic Outlook for Sub-Saharan Africa presents a clear warning: regional growth is slowing, debt pressures are mounting, and donor assistance is declining. Yet the report outlines critical opportunities particularly in domestic revenue mobilization, structural reform, and private sector activation that can shape a more resilient …
A method for the determination of 200 pesticides and pesticide metabolites in honeybee samples has been developed and validated. Almost 98% of compounds included in this method are approved to use within European Union, as active substances of plant protection products or veterinary medicinal products used by beekeepers to control …
A simple and easy direct solid-phase extraction (SPE) method was developed for the analysis of polynuclear aromatic hydrocarbons (PAHs) in olive oil using a dual-layer cartridge containing activated Florisil and a mixture of octadecyl (C18)-bonded and zirconia-coated silicas. Undiluted olive oil was applied directly to the SPE cartridge, and the …
Mancozeb and its main metabolite ethylene thiourea (ETU) may alter thyroid function; thyroid hormones are essential for fetal brain development. In Costa Rica, mancozeb is aerially sprayed at large-scale banana plantations on a weekly basis. The objective of the study was to evaluate urinary ETU concentrations in pregnant women living …
OXYTETRACYCLINE Belonging to the common antibiotic class of Tetracyclines, this antibiotic is used by beekeepers against bacterial foul brood diseases. The BIS recommends it for the treatment of European foul brood disease. HEALTH IMPACTS: Chronic exposure to oxytetracycline or OTC can lead to bloodrelated disorders, liver injury and delayed blood …
Multiple antibiotics in high amounts were found in 11 out of the 12 samples. All 11 samples failed the antibiotics standards set by the Indian government’s Export Inspection Council (EIC) for exported honey. The two imported honey samples were also highly contaminated with antibiotics. Both would have failed their own …
Synthetic pyrethroid insecticides are being used with greater frequency in the United States to replace residential and some agricultural organophosphorus (OP) and carbamate insecticides. The pyrethroids are considered to be less toxic to humans than the OPs and carbamates, but like many other classes of insecticides, they are acute neurotoxicants. …
Occurrence of antibiotics was investigated in water associated with two hospitals in Ujjain district, India. Samples of hospital associated water were subjected to solid phase extraction combined with high pressure liquid chromatography-tandem mass spectrometry (LC-MS/MS), to estimate antibiotics in incoming safe water, hospital wastewater and groundwater. The incoming safe water …
Perchlorate (View the MathML source), which is used as an oxidizer in jet and rocket fuels, pyrotechnic devices and explosives, is a widespread contaminant in surface waters and groundwater of many countries. Perchlorate is known to affect thyroid function. Despite the compound
A method has been developed and validated for the simultaneous analysis of different veterinary drug residues (macrolides, tetracyclines, quinolones, and sulfonamides) in honey. Honey samples were dissolved with Na2EDTA, and veterinary residues were extracted from the supernatant by solid-phase extraction (SPE), using OASIS HLB cartridges. The separation and determination was …
Honey samples, collected from the Southern Marmara region of Turkey, were analysed for erythromycin residues by liquid chromatography-mass spectrometry using electrospray ionization in the positive ion mode (LC-ESI-MS). Fifty samples, comprising chestnut, pine, linden and multi-flower honeys, were collected directly from hives and analyzed. The limit of detection and quantification …
Imazethapyr, a selective herbicide belonging to imidazole group is used as pre and post emergence to control grasses and broadleaf weeds. Herbicides when applied post-emergence may also leave residues in plant material and soil, depending on the chemical structure, doses and their interaction with the soil properties. The aim of …
Migration of the potential endocrine disrupter, bisphenol A (BPA), from 31 polycarbonate (PC) baby bottles into aqueous food simulants was studied under real repetitive use, using a sensitive and fully validated liquid chromatographic method with fluorescence detection. Confirmation of the presence of BPA was performed by liquid chromatography-mass spectrometry (LC-MS). …
A method making use of turbulent flow chromatography automated online extraction with tandem mass spectrometry (MS/MS) was developed for the analysis of 4 quinolones and 12 fluoroquinolones in honey. The manual sample preparation was limited to a simple dilution of the honey test portion in water followed by a filtration. …
Azoxystrobin residue was determined in mango fruits using high performance liquid chromatography (HPLC). Residues of azoxystrobin were extracted with acetonitrile and purified by both liquid liquid extraction (LLE) and solid phase extraction (SPE) clean up. The HPLC analysis was carried out on ODS2 column with acetonitrile: water (80:20 v/v) as …
A high-performance liquid chromatographic method was developed for the determination of five penicillins: penicillin G (PENG), penicillin V (PENV), oxacillin (OX), cloxacillin (CLO), and dicloxacillin (DICLO), in bovine muscle. Samples were macerated with a mixture of H2O/CH3CN (1:1) and purified using RP-8 Adsorbex SPE cartridges after centrifugation, with mean recovery …
A high-performance liquid chromatographic method was developed for the determination of five penicillins: penicillin G (PENG), penicillin V (PENV), oxacillin (OX), cloxacillin (CLO), and dicloxacillin (DICLO), in bovine muscle. Samples were macerated with a mixture of H2O/CH3CN (1:1) and purified using RP-8 Adsorbex SPE cartridges after centrifugation, with mean recovery …
Two liquid chromatography mass spectrometric techniques, i.e. ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC/Q-Tof MS) and high-performance liquid chromatography/tandem mass spectrometry (LC/MS/MS), were used for quantification, confirmation or identification of six macrolide antibiotic residues and/or their degradation products in eggs, raw milk, and/or honey. Macrolides were extracted from food samples …
The separation of streptomycin and its derivative dihydrostreptomycin using ion-pair liquid chromatography is proposed. The method is based on the use of a new stationary phase based on a ligand with amide groups and the endcapping of trimethylsilyl which avoids the appearance of tailed peaks. The isocratic mobile phase consisted …
Simultaneous determination of oxytetracycline, 4-epioxytetracycline, ?-apooxytetracycline, tetracycline and ?-apooxytetracycline on C18 columns has been accomplished using a high performance liquid chromatographic method with UV detection. Separation was achieved on a Hypersil BDS RP-C18 column (250 mm
