Paragraph from Statement of Purpose

Good day folks,

I am writing a Statement of Purpose for the Ph.D. program in Chemistry. Could you please check just one paragraph to see if there are any errors in spelling/punctuation/grammar?

The interdisciplinary nature of my work can be best illustrated by my senior thesis, which has been written at “Lighthouse”, where I was working full-time as the final stage of my study. There, side by side with Chemists and Engineers, I was trying to improve existing technology of Cs-137-based radiation sources preparation. Having analyzed main flaws of the technique (high solubility of sources, waste of Cs-137 in the form of dust, unacceptable radiation properties of Cs-based tablets), I was seeking for an alternative method to prepare less wasteful, more durable insoluble radiation sources. Ultimately, I found a way for using zeolites (Cs(Na)AlSiO₄) as a starting material along with the further ion exchange of Na⁺ for ¹³⁷Cs⁺ that yielded radiation sources of desired properties, which were easier in handling. It was especially stimulating for my work to collaborate on the project with leading engineers of “Lighthouse”, who subsequently used project results for a variety of purposes. Thereafter, the new technology brought me an offer of full-time permanent position at “Lighthouse”, and I graduated in the top 5 percent of class. Writing the thesis also helped me gain invaluable industry experience and increased my ability to participate in a project as a research team member and as an individual, thus having prepared me for my future academic career.

Thank you in advance!