PAH16 standards as listed in Table 1 were purchased from Supelco (Bellefonte, PA, USA). HPLC-grade solvents (acetonitrile and dichloromethane) and analytical-grade solvents/chemical (methanol, 2-propanol, 1-buthanol, n-hexane and potassium hydroxide) were purchased from RCI Labscan (Bangkok, Thailand) and Ajax Finechem (Silverwater, NSW, Australia). The DADS and quercetin hydrate were obtained from Sigma-Aldrich (St. Louis, MO, USA).
Hplc grade solvents
Manufactured by RCI Labscan
Sourced in Thailand
HPLC-grade solvents are high-purity, ultra-low-residue organic solvents designed for use in high-performance liquid chromatography (HPLC) applications. These solvents meet stringent specifications for parameters such as UV cutoff, non-volatile residue, and acidity/basicity to ensure optimal performance and reliability in HPLC systems.
Automatically generated - may contain errors
2 protocols using hplc grade solvents
1
HPLC Analysis of Polyphenol Compounds
2
Characterization of Rice Bran Oil
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Standard triacylglycerol, tocopherols and tocotrienols (≥ 95％ by HPLC) were purchased from Sigma-Aldrich (St. Louis, MO, USA) . γ-Oryzanol was purchased from Oshii Foods Co. Ltd. (Bangkok, Thailand) . Commercial products of refined RBO, with different levels of γ-oryzanol (4.0, 8.0 and 12.0 mg/g) , were purchased from a local supermarket in Bangkok, Thailand. Crude RBO was gifted by Surin Rice Bran Oil Co. Ltd. (Surin Province, Thailand) . HPLC-grade solvents were obtained from RCI LabScan Co. Ltd. (Bangkok, Thailand) . Stock standard solutions of triacylglycerol, tocopherols, tocotrienols and γ-oryzanol were freshly dissolved in their mobile phase (1.0 mg/mL each) before analysis. The commercially refined and crude RBO were freshly dissolved in their mobile phase (10.0 mg/mL each) before analysis.
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