仪器是戴安ICS-600，今天刚换了200ul定量环(之前是10ul)，流速1 ml/min，淋洗液(4.5mmo/ml  碳酸钠+0.9 mmol/ml 碳酸氢钠)。做得元素是氟离子，亚氯酸盐，氯离子，氯酸盐，硝酸根离子，硫酸根离子。现在的情况是出峰拖尾，亚氯酸盐前面有个峰分不出来。请大家帮我看下要怎么解决。以下是做的五个混合标准样品的色谱图。[img=,690,517]https://ng1.17img.cn/bbsfiles/images/2020/09/202009091605201520_8126_3164424_3.png[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2020/09/202009091605343743_1641_3164424_3.png[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2020/09/202009091605473368_2546_3164424_3.png[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2020/09/202009091605565836_6003_3164424_3.png[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2020/09/202009091606077908_656_3164424_3.png[/img]