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在医院药房、护理及检驗工作中,經常会遇到溶液浓度的折算問題,其类型不一,运算費时。笔者用图解法进行溶液浓度运算,方法簡单,容易掌握,計算迅速,应用广泛,結果比較滿意。現簡介如下。計算图制法取直坐标紙(毫米图紙)按图1所示,作真AB、CD两条等长平行直綫;然后联接BC,并将它們各分咸50与100等份(可令坐标紙1格或2格为一份,或稍大一些)。CD和BC綫的刻度以二线交点C为起点及零点,
In the hospital pharmacy, nursing and inspection work, often encounter the conversion of solution concentration, its different types, the operation time-consuming. The author uses graphic method to calculate the concentration of solution, the method is simple, easy to grasp, rapid calculation, wide range of applications, the results are satisfactory. Now the introduction is as follows. Calculate drawing method Take straight coordinate paper (millimeter paper) as shown in Figure 1, for true AB, CD two equidistant parallel lines; then connect the BC, and their sub-salty 50 and 100 equal parts Paper 1 or 2 grid for a, or slightly larger). CD and BC line to the second line of intersection C as a starting point and zero,