分光光度技术是比色法的发展。比色法只限于在可见光区，分光光度法则可以扩展到紫外光区和红外光区。比色法用的单色光是来自滤光片，，精度不高，分光光度法则要求近于真正单色光，其光谱带宽最大不超过3－5nm，在紫外区可到1nm以下，来自棱镜或光栅，具有较高的精度。
本发明涉及一种利用分光光度技术测定海水中亚铁、三价铁及总铁含量的简便准确方法。
The invention relates to a method for simply, conveniently and accurately measuring the contents of ferrous, ferric iron and total iron in seawater by utilizing a spectroscopic luminosity technology.
之前，一项称为微量分光光度测定法的技术显示，鲨鱼的近亲鳐鱼和奇美拉都有辨色能力。
A technique known as microspectrophotometry had previously shown that rays and chimaeras, both close relatives of sharks, have color vision.
澳大利亚的研究人员利用一种称为显微分光光度测定法的技术对捕自昆士兰和西澳大利亚外海的17种鲨鱼的视网膜进行了观察。
Researchers in Australia, using a technique called micro-spectrophotometry, looked at the retinal cells of 17 species of shark caught off Queensland and Western Australia.
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