[img=,690,517]https://ng1.17img.cn/bbsfiles/images/2019/05/201905081134434064_8626_2901969_3.jpg!w690x517.jpg[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2019/05/201905081135159128_4244_2901969_3.jpg!w690x517.jpg[/img]空白跟标曲都是用5%硝酸配制的，走了几遍曲线都是这样，无论是自动进样还是手动进样，换了石墨管也不行，求助大神。。。。