Below is an example of measuring microscopic algae with medium culture as a high-suspension solution. Fig. 1 shows the TC, IC, TOC measurement results of microscopic algae, and Fig. 2 shows the ratio of TOC and IC in the TC of the microscopic algae. In both cases, the figures show trace results after an 8-day incubation. Though sample preparation, such as homogenizing, was not performed, stable and accurate results were obtained.*1)
The TOC-L makes it possible to observe the dynamic state of the carbon accurately and in real time. Plus, since it only requires a small sample volume (10-20mL), the TOC-L is best suited for lab-scale studies.
TOC-L can be utilized in following applications.
- Obtaining information about the characteristics of microscopic algae.
- Monitoring the behavior of microscopic algae cells in the cultivating process or in a contrasting environment.
- Understand quantitatively the carbon and nitrogen balance*2) in the culture system.
*1) Data provided by Prof. Shiroiwa, Tukuba Univ.
*2) The "TNM-L" unit is required for total nitrogen (TN) analysis.
We cannot prove that this model can measure "all" types of suspended solids in the sample. Depending on the characteristics of the suspended solid, sample pretreatment like dilution, fracturing, diverging, or agitating may be required. If you have any questions about the sample condition or the applicability of this model to your sample, please contact your Shimadzu representative.