8. 10. 20193 077 zhlédnutíLearn more: http://bit.ly/37Bztm9Currently, there is only one official method throughout the world for testing honey, AOAC-998.112, the SIRA method for isoto...
10. 5. 201319 tis. zhlédnutíIn this tutorial we look at the terms upfield, downfield, high frequency, low frequency, shielded and deshielded when used to described the position of peaks...