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1.The method of planar chromatography is widely used in the analysis of biological samples.
平面色谱法在生物样本分析中广泛应用。
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2. The research on planar chromatography has made significant progress in recent years.
近年来，平面色谱研究取得了显著进展。
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3. The development of planar chromatography has greatly improved the efficiency and accuracy of sample analysis.
平面色谱的发展极大地提高了样品分析的效率和准确性。