求翻译：分别称取标准溶液0.0ml、0.5ml、1.0ml、1.5ml、2.0ml于一组25ml棕色容量瓶中，各加水至5ml，再加酒石酸铁溶液5ml，加磷酸盐缓冲液至刻度，混匀后用1cm比色皿，以试剂空白作参比，于波长540nm处测定吸光度，绘制标准曲线。是什么意思？

Are said to take the standard solution, 0.0ml, 0.5ml, 1.0ml, 1.5ml, 2.0ml in a 25ml brown volumetric flask, add water to 5ml, coupled with tartaric acid iron solution 5ml plus phosphate buffer scale, mix after using 1cm cuvette, the reagent blank as reference, the measured absorbance at a wavelength

They said that the standard solution 0.0 ML, 0.5 ML, 1.0 ML, 1.5 ML, 2.0 ml of a group of 25 ml brown capacity in a bottle, and add the water to 5 ML, and tartaric acid solution 5 ML, and the phosphate buffer solution to the graduations, mix with more than 1 CM Petri dish color reagent blank as to t

A minute alternate name takes standard solution 0.0ml, 0.5ml, 1.0ml, 1.5ml, 2.0ml in a group of 25ml brown measuring flask, each watering to 5ml, adds tartaric acid iron solution 5ml again, adds the phosphate buffer solution to the scale division, after mixes uniform compares the color dish with 1cm

Respectively known as the preparation of standard solution of 0.0ml, 0.5ml, 1.0ml, 1.5ml, 2.0ml, to a group of 25ml Brown in a volumetric flask, add water to 5ml, plus 5ml iron tartrate solution, and PB to tick, after mixing with 1cm cell and reagent blanks as a reference, at wavelength 540nm measur

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