Quality and Technical Supervision and Inspection Institute technology projects undertaken at the county level, "paper food packaging materials Determination of residual solvents research" project through acceptance.
　　Paper products in the printing production process residues likely presence of chemicals, which cause harm to humans. The project comparing different pre-treatment and HPLC conditions affect the results, select the six kinds of typical paper food packaging materials testing, presents a convenient, accurate and fast in nine kinds of paper packaging materials detection of residual solvents new methods.