May 01, 2016 · GC-MS Analysis: All samples were analyzed by GC/MS instrument manufactured by Shimadzu (Model GCMS-QP2010 Ultra) using Rxi[R]-5ms (fused silica) capillary column (30 m - 0.25 mm ID, 0.25 ml film thickness, low polarity phase; Crossbond[R] diphenyl dimethyl polysiloxane). Helium gas was used as the carrier gas at a flow rate of 1 ml/min.

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Mar 08, 2021 · Profiling of crude Saudi propolis with LC and HPLC–UV–ELSD. Crude propolis extract characterized using liquid chromatography–mass spectrometry (LC–MS) is shown in Fig. 1a. The LC–MS

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Aug 15, 2017 · The first aim of this study was to create, test, and apply a quick, easy, cheap, effective, rugged, and safe (QuEChERS) method, based on acetonitrile extraction, for simultaneous determination of pesticide residues in green chili pepper (fresh and dried forms). There is a group of 86 repeatedly detected pesticides in the agricultural food commodity in Al-Qassim region, Saudi Arabia. The

Aug 26, 2014 · Fruit juices are popular beverages regularly consumed by both adults and children. Various brands of different fruit juices in Saudi markets are packaged in disposable plastic bottles made of polyethylene terephthalate (PET). Some evidence suggests that phthalates may leach from PET bottles. Few studies have analyzed the presence or assessed the risk of phthalates in fruit juice. The

Apr 04, 2013 · Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia. Center for Excellence in Nanotechnology, KFUPM, Dhahran, Saudi Arabia. Correspondence: Dr. Chanbasha Basheer, Department of Chemistry, King Fahd University of Petroleum and minerals, Dhahran 31261, Saudi Arabia. E-mail: cbasheer@kfupm.edu.sa. Fax

Established in 1999 in Dubai, United Arab Emirates, Gulf Bio Analytical LLC (GBA), is a recognized leader in providing comprehensive laboratory solutions to the hydrocarbon processing, and the analytical and life sciences industries in the Middle East, India and S.E. Asia.

Globally sourced, every AromaEasy Essential Oil is 100% Pure and Natural. We believe in using only the highest-grade. Therapeutic essential oils and each batch is third-party GC/MS tested for purity and composition. Enjoy natural fragrance & therapeutic benefits in a variety of wellness products. Essential Oil Bottles and Supplies.

Introduction. Gas chromatography–mass spectrometry (GC-MS) is the most standardized method in metabolomics, with almost 50 years of established protocols for metabolite analyses (e.g., sugars (DeJongh et al, 1969), amino acids (Gelpi et al, 1969), sterols (Brooks et al, 1968), hormones (Gréen, 1969), catecholamines (Anggard & Sedvall, 1969), hydroxyl acids (Kuksis & Prioreschi, 1967), fatty

Globally sourced, every AromaEasy Essential Oil is 100% Pure and Natural. We believe in using only the highest-grade. Therapeutic essential oils and each batch is third-party GC/MS tested for purity and composition. Enjoy natural fragrance & therapeutic benefits in a variety of wellness products. Essential Oil Bottles and Supplies.

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In this study, caffeine content in nine most popular energy drinks marketed in Saudi Arabia was determined by GC-MS analysis. The analytical method was developed and validated and found to be linear, precise, accurate, and specific. The analysis was simple, as the samples were directly injected after multifold dilutions in methanol.

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