单位所用气质联用仪是热电的trace 1300 isq，只用它分析塑化剂，分析条件是：
进样口300度，不分流进样，进样后分流比30:1，离子源300度，传输线300度
程序升温，起温80度，以10度/min升到280度保持5min。载气恒流1ml/min。遇到的问题是把标样配好后自动进样器连续打十针，出来的结果不断升高，第十针可以升高20%以上。以下是DBP标样数据，求帮忙分析升高原因？
| Filename | Sample Type | Area | ISTD Area | Amount | %Diff |
| 1ppmA-1 | Unknown Sample | 81237594 | NA | 1.234 | NA |
| 1ppmA-2 | Unknown Sample | 78036212 | NA | 1.185 | NA |
| 1ppmA-3 | Unknown Sample | 81271923 | NA | 1.234 | NA |
| 1ppmA-4 | Unknown Sample | 85938178 | NA | 1.305 | NA |
| 1ppmA-5 | Unknown Sample | 87686800 | NA | 1.332 | NA |
| 1ppmA-6 | Unknown Sample | 89344965 | NA | 1.357 | NA |
| 1ppmA-7 | Unknown Sample | 89105441 | NA | 1.353 | NA |
| 1ppmA-8 | Unknown Sample | 98920463 | NA | 1.502 | NA |
| 1ppmA-9 | Unknown Sample | 107448968 | NA | 1.632 | NA |
| 1ppmA-10 | Unknown Sample | 101983569 | NA | 1.549 | NA |
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