计算机应用与软件
計算機應用與軟件
계산궤응용여연건
COMPUTER APPLICATIONS AND SOFTWARE
2013年
11期
306-308,320
,共4页
数据处理%色谱峰识别%阈值%重叠峰检测%基线校准
數據處理%色譜峰識彆%閾值%重疊峰檢測%基線校準
수거처리%색보봉식별%역치%중첩봉검측%기선교준
Data processing%Chromatogram peaks recognition%Threshold value%Overlapping peak detection%Baseline correction
色谱在化学分析中的应用越来越广泛，针对色谱信号数据处理要求，实现一套谱峰识别的算法。在数据预处理和提出的程序法确定合适阈值的基础上，该算法结合谱峰曲线及其一阶导数曲线的趋势对谱峰进行识别，算法经宽松变换后，用于区分化学谱图中谱峰的终点是否真正落回到基线上，并由此实现一种具有健壮性的重叠峰检测方法和及时准确的谱图基线校正方法。由于该算法的阈值参数可以固定，从而保证了重叠峰检测较少地受到人为的影响，进一步提高了化学谱图数据处理的自动化水平。
色譜在化學分析中的應用越來越廣汎，針對色譜信號數據處理要求，實現一套譜峰識彆的算法。在數據預處理和提齣的程序法確定閤適閾值的基礎上，該算法結閤譜峰麯線及其一階導數麯線的趨勢對譜峰進行識彆，算法經寬鬆變換後，用于區分化學譜圖中譜峰的終點是否真正落迴到基線上，併由此實現一種具有健壯性的重疊峰檢測方法和及時準確的譜圖基線校正方法。由于該算法的閾值參數可以固定，從而保證瞭重疊峰檢測較少地受到人為的影響，進一步提高瞭化學譜圖數據處理的自動化水平。
색보재화학분석중적응용월래월엄범，침대색보신호수거처리요구，실현일투보봉식별적산법。재수거예처리화제출적정서법학정합괄역치적기출상，해산법결합보봉곡선급기일계도수곡선적추세대보봉진행식별，산법경관송변환후，용우구분화학보도중보봉적종점시부진정락회도기선상，병유차실현일충구유건장성적중첩봉검측방법화급시준학적보도기선교정방법。유우해산법적역치삼수가이고정，종이보증료중첩봉검측교소지수도인위적영향，진일보제고료화학보도수거처리적자동화수평。
The application of chromatography is more and more popular in chemical analysis .In this article , we realise a set of algorithms for chromatographic peak recognition in light of the requirement on chromatogram signal processing .Based on data pre-processing and appropriate threshold determined with procedural method , the algorithms distinguish the peaks by combining the trend of chromatogram curve with the trend of its first derivative curve , after loose transformation , the algorithms are applied to differentiate whether the end points of peaks in chemical chromatogram have really fallen back to the baseline , and thus implement an overlapping peaks detection method with robustness and the timely and accurate method of chromatogram baseline correction .As the threshold parameter in the algorithm can be fixed , therefore it ensures the overlapping peaks detection less impacted by the human , and further improves its automation level in chemical chromatogram data processing .
