Figure 3.

Comparison of different hydrolysis systems for cyanide in bamboo shoots (n = 6). (1) Complexing agent: 1 ml zinc acetate (100 g l⁻¹), acidifier:10 ml tartaric acid (pH = 4); (2) complexing agent: 1 ml cadmium chloride (50 g l⁻¹), acidifier: 10 ml phosphate buffered solution (pH = 6); (3) complexing agent: 1 ml stannous chloride (50 g l⁻¹) and 5 ml copper sulfate (200 g l⁻¹), acidifier: 10 ml 85% phosphoric acid buffer (pH < 2); (4) complexing agent: 1 ml EDTA solution, 1 ml 20% copper sulfate and 0.2 ml stannous chloride solution, acidifier: 10 ml 85% phosphoric acid buffer (pH < 2). Other microdiffusion conditions: 40°C, 4 h.