Quantitative Determination of Hydroquinone in Methacrylic Acid by MIS

Hydroquinone,the polymerization inhibitor of methacrylic acid monomers,is quantitatively determined by GC/MS/MIS technique using BSFS derivativemethod and uaphthalene as inner standard with MAT44S GC/MS/DS system.The detective limits are as low as 20ng/μl. The relative errors aro about10%.