求翻译：摘 要：采用吸光光光度法测定橙汁 (康师傅、美汁源，统一 )中的苯甲酸，在 220.8nm波长下测定苯甲酸标准溶液，吸光度与浓度成线性关系，线性方程为A=0．087c+O．11167，相关系数 R=0．9799。回收实验测定回收率为 98．0％-100．8％，向苯甲酸提取液加标测试，测定样品溶液中苯甲酸的含量，该法快速、便捷、可靠。收率为98．0％-100．8％， 向苯甲酸提取液加标测试，测定样品溶液中苯甲酸的含量，该法快速、便捷、是什么意思？

Abstract: The absorption optical spectrophotometric determination of orange juice (Master Maid, unity) of benzoic acid, benzoic acid standard solution, the absorbance and the concentration of a linear relationship between measured in the 220.8nm wavelength, the linear equations for a = 0 .087 c + o.

Summary: Using the measured photometric light-orange juice (Juice Master Kang, and the United States, Unity) in the use of benzoic acid, and the 220.8 nm wavelength measurement standard benzoic acid solution, the sensitivity and concentration, a linear relationship between linear equations A = 0.087

Abstracts: absorption Spectrophotometric Determination of orange juice (master, and Minute Maid, uniform) benzoic acid, determination of benzoic acid in 220.8nm wavelength standard solution, relationship between absorbance and concentration into the linear, linear equation for the A=0. 087c+O． 11,16