摘要:The contemporary chemistry teaching laboratories endeavour to integrate the current themes of safety, sustainability and simplicity in all aspects of experimental design. The qualitative analysis of carbohydrates is central to study of organic chemistry and biochemistry laboratory courses at undergraduate level. This paper presents a novel qualitative test for detection of carbohydrates using a single reagent, alkaline potassium hexacyanoferrate (III). This reagent shows a characteristic behaviour towards carbohydrates. The observation is developed and presented as a simple, safe and easy to perform test for detection of carbohydrates. The test is suitable for micro scale as well as mini scale quantities. It involves no special technique to perform, is quick to accomplish and gives unambiguous results. These attributes make it suitable to be adopted in teaching laboratories.
关键词:Alkaline potassium hexacyanoferrate (III) reagent; Carbohydrates; Qualitative test