• I want to prepare a calibration curve from BTEX standard for volatile organic compounds analysis by GC-FID and I have a problem related to its preparation in carbon disulfide. The standard comes dissolved in methanol and when I try to prepare the calibration curve with carbon disulfide, the solution evidences the formation of two phases. ¿How can I obtain a homogeneous solution and avoid possible interferences?. Thank you, regards.
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