High Levels of Contamination by Antibiotic Residues in Raw and Fermented “lben” Cow’s Milk Collected in Guelma, Algeria| Chapter 1 | Current Perspectives in Agriculture and Food Science Vol. 2

 In an work to improve the character and quantity of cuisine production (specifically milk) and to prevent or treat animal diseases, the use of medicines in Algeria is on the rise. The raised use clearly donates to the emergence of larger levels of antibiotic slag contamination. Two arrangements were used in this place study to detect the attendance of antibiotic residues in raw and simmered cow's milk composed from Guelma's farms (in Algeria). The comparison of two together methods disclosed that Delvotest SP-NT is less reliable on account of the high number of wrong negative results. This was confirmed by LC-MS/MS, that revealed antibiotic traces in any of samples. Antibiotic residues were found in 65.46% of milk samples, signifying a lack of public health controls in addition to evidence of negligent medicine use in the livestock manufacturing, both of that pose a risk to public health.The study given an LC-MS/MS-based examining method that is connected to the internet in the Algerian National Residues Control Plan as a versatile examining tool for listening and determining.

Author(s) Details:

Samiha Layada,
Research Laboratory of Biology, Water and Environment, Biology Department, Faculty of Natural and Life Sciences, Earth and Universe Sciences, University 8 Mai 1945-Guelma, BP 401, Guelma 24000, Algeria.

Djemel-Eddine Benouareth,
Research Laboratory of Biology, Water and Environment, Biology Department, Faculty of Natural and Life Sciences, Earth and Universe Sciences, University 8 Mai 1945-Guelma, BP 401, Guelma 24000, Algeria.

Wim Coucke,
Scientific Institute of Public Health, Juliette Wytsman Street 14, 1050 Brussels, Belgium.

Mirjana Andjelkovic,
Scientific Institute of Public Health, Juliette Wytsman Street 14, 1050 Brussels, Belgium.

Please see the link here: https://stm.bookpi.org/CPAFS-V2/article/view/9403

LC and LC-MS/MS Studies for the Characterization of Forced Degradation Products of Tucatinib, a Novel Tyrosine Kinase Inhibitor| Chapter 3 | Challenges and Advances in Pharmaceutical Research Vol. 10

 The happening, validation, and characterisation of compulsory degradation products utilising LC-MS/MS were the main aims of the current investigation.Using an isocratic HPLC approach, tucatinib maybe measured quantitatively at a awareness of 239 nm in a simple, selective, substantiated, and well-defined method. An isocratic elution of samples was performed on an Inertsil ODS (250x4.6mm, 5m) procession with a mobile aspect of 70:30v/v Acetonitrile and formic acid (0.1%) delivered at a flow rate of 1.0 mL/brief time period. The degradation amount created during the strained degradation inquiry were characterised using MS/MS. Over the aggregation range of 5-100μg/ml, a good linear answer was obtained. Tucatinib's LOD and LOQ were determined expected 0.05 and 0.5, respectively. The approach was quantitatively determined in terms of order appropriateness, linearity, accuracy, accuracy, and strength in accordance with standard directions, and the findings were found expected within satisfactory limits. In studies on forced degeneration, the medication decomposed in sour, alkaline, and decline environments. It was persistent that the approach could be used for standard tucatinib study. Since there hasn't happened any evidence of an LC-MS/MS design for quantifying tucatinib and its degradation fruit in the literature. A device for researching the complete tucatinib degradation process has to be grown.

Author(s) Details:

S. K. Reehana,
Department of Pharmaceutical Analysis, University College of Pharmaceutical Sciences, Acharya Nagarjuna University; Nagarjuna Nagar, Guntur – 522510, Andhra Pradesh, India.

K. Sujana,
Department of Pharmaceutical Analysis, University College of Pharmaceutical Sciences, Acharya Nagarjuna University; Nagarjuna Nagar, Guntur – 522510, Andhra Pradesh, India.

A. Suneetha,
Department of Pharmaceutical Analysis, KVSR Siddhartha College of Pharmaceutical Sciences; Vijayawada – 520010, Andhra Pradesh, India.

Please see the link here: https://stm.bookpi.org/CAPR-V10/article/view/8797

Research on Development and Optimization of an LC-MS/MS Method for Dosage Form of Ergocalciferol (Vitamin D2) in Human Plasma | Chapter 5 | Current Approaches in Science and Technology Research Vol. 4

 The use of high-resolution mass spectra has made it easier to measure ergocalciferol in biological material. To quantify ergocalciferol, multiple LC-MS/MS methods have been developed. Using LC-MS/MS, researchers were able to establish an accurate method for quantifying ergocalciferol in a large number of samples, which should be tested in the blood shortly after administration. The goal of this research is to improve chromatographic conditions and assess the LC-MS/MS method for reliable quantification of ergocalciferol dose form in human plasma. Methanol liquid–liquid extraction and a reverse phase C8 column were used to extract and separate ergocalciferol from human plasma, respectively. To detect and quantify ergocalciferol by LC-MS/MS, the residue following liquid-liquid extraction was dissolved using PTAD reagent along with the reconstituted solution. A quadrupole tandem mass spectrometer (LC-MS/MS) with an atmospheric pressure chemical ionisation (APCI) source was used for detection. The procedure was validated using certified reference material in accordance with FDA requirements. The LOQ for the analyte examined was 5.44 ng/mL, 65.123 ng/mL in medium-MQC, and 120.598 ng/mL in high-HQC, and the quality control samples did not exceed 20 and 15% CV, respectively. The method for determining ergocalciferol was validated, and the accuracy was found to be between 95.40 and 103.09 percent. This approach can be used to determine the amount of ergocalciferol in the systemic circulation after external intake of tablets. The LC-MS/MS test can be used to quantify ergocalciferol natural form from external ingestion and investigate the metabolism of clinical trial participants.

Author(s) Details

A. Srinivas
Department of Genetics, Osmania University, Hyderabad, 500 007, Telangana, India.

M. Tamilselvi
Value Added Corporate Services Pvt Ltd, Besant Nagar, Chennai, 600090, India.

View Book :- https://stm.bookpi.org/CASTR-V4/article/view/1039