Through optimizing the liquid uv - curable composition ( kind of oligomer , concentration of active diluent , photoinitiator and additive ) , we have got a kind of better ingredient , as follows : pua 100 % and additive ( tf , ab and nanometer additive mnip0220 ) 100 % . ( 4 ) compares hs - spme ( made of above ingredient ) with routine hs method under the identic measuring condition . take pepper for example , the area of responsing peak of main component is 62052680 in hs - spme and 38263 in hs ( 10u1 ) , a enrichment multiple of 1622 , which is proved that this spme coating has a better enrichment ability ( 4 )用自制spme装置的hs一spme和常规hs方法进行了比较，在同样测定条件下，用自制的spme装置对胡椒进行hs一spme一gc一ms与常规hs方法进样10拼1进行比较，自制的spme装置对某组分的响应峰面积为62052680 ，而进样10pl对其组分的响应峰面积为38263 ，富集倍数为1622倍，说明自制spme装置具有很强的富集能力。
