我们用此技术在稀释的酱油样品中富集测定了防腐剂山梨酸和苯甲酸的含量，并已取得重要进展。
More recently, benzoic acid and sorbic acid preservatives in diluted soy sauce samples were analyzed by the this method, and we have made some important progress.
我们用此技术在稀释的酱油样品中富集测定了防腐剂山梨酸和苯甲酸的含量，并已取得重要进展。
More recently, benzoic acid and sorbic acid preservatives in diluted soy sauce samples were analyzed by the this method, and we have made some important progress.
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