4 ) the author designed and conducted the usability evaluation of penoffice system using goms model 同时利用goms模型对此系统进行了可用性评估。
2.
( 5 ) compare self - spme apparuts ( coating volume is only 1 / 4 of foreign products ) with foreign spme products - supelco spme ( pa ) , under the same analysing condition , earring on hs - spme - goms for comparing , it can been seen by the result , as to some composition , the absorbing amount of self - spme apparatus has at least one time higher than that of spme ( pa ) of supelco company ( 5 )与国外spme产品进行了比较，用自制的spme装置(涂层体积仅为国外产品的涂层体积的1 / 4 )和supelc 。公司的spme ( pa ) ，在同样分析条件下，对胡椒进行hs一spme一gc一ms测定比较，由结果可知，对某些成分而言，自制spme装置的吸附量比supelco公司的spme ( pa )的吸附量至少高一倍。
