State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, PR China.
Anal Chim Acta. 2010 Sep 23;678(1):26-33. doi: 10.1016/j.aca.2010.08.007. Epub 2010 Aug 14.
A novel application of second-order calibration method based on an alternating penalty trilinear decomposition (APTLD) algorithm is presented to treat the data from high performance liquid chromatography-diode array detection (HPLC-DAD). The method makes it possible to accurately and reliably analyze atrazine (ATR), ametryn (AME) and prometryne (PRO) contents in soil, river sediment and wastewater samples. Satisfactory results are obtained although the elution and spectral profiles of the analytes are heavily overlapped with the background in environmental samples. The obtained average recoveries for ATR, AME and PRO are 99.7±1.5, 98.4±4.7 and 97.0±4.4% in soil samples, 100.1±3.2, 100.7±3.4 and 96.4±3.8% in river sediment samples, and 100.1±3.5, 101.8±4.2 and 101.4±3.6% in wastewater samples, respectively. Furthermore, the accuracy and precision of the proposed method are evaluated with the elliptical joint confidence region (EJCR) test. It lights a new avenue to determine quantitatively herbicides in environmental samples with a simple pretreatment procedure and provides the scientific basis for an improved environment management through a better understanding of the wastewater-soil-river sediment system as a whole.
提出了一种基于交替惩罚三次分解（APTLD）算法的二阶校准方法的新应用，用于处理高效液相色谱-二极管阵列检测（HPLC-DAD）的数据。该方法能够准确可靠地分析土壤、河流沉积物和废水中的莠去津（ATR）、莠灭净（AME）和扑灭津（PRO）含量。尽管环境样品中的洗脱和光谱谱图与背景严重重叠，但仍获得了令人满意的结果。在土壤样品中，ATR、AME 和 PRO 的平均回收率分别为 99.7±1.5%、98.4±4.7%和 97.0±4.4%，在河流沉积物样品中分别为 100.1±3.2%、100.7±3.4%和 96.4±3.8%，在废水样品中分别为 100.1±3.5%、101.8±4.2%和 101.4±3.6%。此外，还通过椭圆联合置信区域（EJCR）测试评估了该方法的准确性和精密度。该方法为通过简单的预处理程序定量测定环境样品中的除草剂提供了新途径，并通过更好地了解整个废水-土壤-河流沉积物系统，为改善环境管理提供了科学依据。
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