Showing papers on "Anthrone published in 2003"
TL;DR: The anthrone/sulphuric acid procedure for the determination of glycogen in blue mussel tissues was optimised with respect to extraction time, reaction time and colour stability.
Abstract: The anthrone/sulphuric acid procedure for the determination of glycogen in blue mussel tissues was optimised with respect to extraction time, reaction time and colour stability.
9 citations
Journal Article•
TL;DR: The method was simple, rapid and reliable for the determination of pachyman in Radix Ophiogonis, and standard curve was liner in the concentration range.
Abstract: AIM To establish a simple and accurate mothod for the determination of pachyman in Radix Ophiogonis METHOD Anthrone Sulphuric Acid colrimetry was used RESULTS max=626 nm, and standard curve was liner in the concentration range 2 56～25 6 mg·L -1 ,the average recovery was 102 46%,RSD=2 02% CONCLUSION The method was simple,rapid and reliable
2 citations
Journal Article•
TL;DR: In this paper, the authors proposed a method to measure the effect of different types of drugs on the human body's ability to tolerate different levels of toxicity.1 98×104L/mol·cm.
Abstract: 直接利用硫酸与水发生水合作用时释放的热量,使反应体系自行升温,达到充分显色,从而免去了水浴加热步骤,使操作更为简便,测定速度提高.通过实验确定了最佳条件,改进了传统的蒽酮-硫酸法,发展并提出了新的蒽酮-硫酸法.其线性范围为0.53～12.96μg/mL,摩尔吸光系数e为1 98×104L/mol·cm.该法简单、快速,准确度高,用于甘蔗汁样品测定,结果满意.
1 citations
Patent•
3 Apr 2003
TL;DR: In this article, an efficient method for producing an anthrone (II) by reacting an anthracene (I) with metallic iron or an iron compound was proposed, in the presence of hydrogen chloride.
Abstract: PROBLEM TO BE SOLVED: To provide an efficient method for producing an anthrone (II) by reacting an anthracene (I) with metallic iron or an iron compound. SOLUTION: The anthrone (II) is obtained by reacting an anthraquinone (I) with metallic iron or an iron compound under hydrogen chloride free condition or in the presence of hydrogen chloride which is 15 mol times and less of the anthraquinone (I). The amount of the metallic iron or iron compound is generally 1 to 50 mol times of the anthraquinone (I). Preferably the reaction is made in the presence of an organic acid, whose amount is 1 to 100 times in weight of the anthraquinone (I).