Question 1

What should I do with Xsi2 system after receiving it?

Accepted Answer

The system is provided with detailed handling instructions and recommended quality control procedures. After introducing sediment into the system, the jar should be tightly closed, checked for any leaks and shaken/rolled for predetermined amount of time.

Question 2

How long should I expose the passive sampler with sediments?

Accepted Answer

The kit is designed for rapid equilibration. The recommended time is 24h.

Question 3

How should I treat the passive sampler after finishing exposure with sediment?

Accepted Answer

The sampler should be gently rinsed with MiliQ or deionized water immediately after retrieval and wiped with lint-free tissue (e.g., Kimwipes) to remove any adhering particles. Sediment particles or solids remaining on the polymer will be extracted along with the polymer resulting in overestimation of freely-dissolved concentrations. Detailed instructions are supplemented with the product.

Question 4

Can I reuse the jar for other exposures?

Accepted Answer

It is not advised to reuse the jar. All jars come with unique barcodes and batch specifications.

Question 5

What should I do with the polymer system when I don’t have access to specialized facilities and contract laboratories?

Accepted Answer

Customers may request support and bundled passive sampling services to meet their needs. Envirostatus will reach out to preferred laboratories and request specific analysis for the client.

FAQ