主题：【求助】HPLC-OAAS设备关于OAAS是什么东西

我目前正计划做砷的废水处理，主要是将不易沉淀的三价砷（NaAsO2）转化成易沉淀的五价砷（NaAsO3）。查了一篇文献，介绍了HPLC-OAAS测定三价砷和五价砷的方法，内容如下。

For arsenite and arsenate determination, a SHIMADZU High Performance Liquid Chromatograph (HPLC)-Organic Acid Analysis System (OAAS) was used. The separation of As(III) and As(V) was performed by HPLC with a Shimpack SPR-H (250 mm · 7.8 mm i.d.) analytical column and a Shim-pack SPR-H (G) (50 mm · 7.8 mm i.d.) guard column. Arsenic species were detected on line with OAAS. The mobile phase was a 2mM p-toluenesulfonic acid solution while the reaction phase was a mixture of 0.1 mM EDTA (4 H) and 8 mM N, N-Diethylethanolamine solution. The flow rate was 0.8ml/ min, and the injection volume of sample was 200 lm. The column temperature was kept at 40℃ during analysis.

目前实验室里有一台液相色谱waters breeze HPLC。
waters1525 Binary HPLC Pump。waters 2487 Dual λ absorbance Detector。

OAAS大概需要多少钱，买其他牌子的能和现有的HPLC相配套吗？药品和试剂要买哪些？

请明白的朋友指导一下。谢谢了。