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Dear EditorQuantitation of gibberellins (GAs) in plant samples has received continuous attention because they play key roles in plant growth and development (Mander,1992).However,GAs comprise at least 136 highly similar endogenous analogs but appear only at an ultra-trace level of femptomoles to picomoles per gram fresh weight in scientifically conceed parts of plants (Tarkowská et al.,2014).