About my previous internships in Chemistry

Today, I would like to tell you about my previous internships. I want to do this because it will help me to talk about my training periods for my future job interview in English.

I carried out four internships in the field of Analytical Chemistry. Analytical Chemistry allows us (or "is the sub-discipline of chemistry that allows us) to determine if a compound is present in a sample or not, and, if yes, in what amount.

My first internship was during my 2-year undergraduate studies in Chemistry. I worked with lab technicians in the Organic Micropollutants department. This training period lasted for 2 months. I ran liquid/liquid extractions of water samples with an organic phase in order to extract some [any?] organic compounds that were present in the sample. The extract was then analyzed by another lab technician's team.

For my second internship, I worked on metal analyses in liquid, solid and gaseous samples using Inductively Coupled Plasma - Atomic Emission Spectrometry (ICP-AES) [in American graduate academic writing, you first give the full phrase, then the acronym, so that the reader can understand]. I prepared samples before analysis [did you do the analysis, or someone else?]. This internship lasted for 10 weeks [above you wrote "2 months" - choose a consistent style, either writing "two months...ten weeks..." or "2 months... 10 weeks" for clarity].

During my third internship, I carried out diverse analyses on acrylic emulsions in a quality-control lab of a well-known chemical company. The acrylic emulsions had been manufactured on site, and I performed experiments at the middle- and end-stages of production. These experiments included, for example, measuring the pH of the product, determining its viscosity, quantifying the amount of residual monomers, and determining its solid content.

In my fourth internship, I was in charge of the re-validation of 2 analytical methods on a Fast Liquid Chromatography [FCL?] device. These methods determined the amount of acrylamide and certain biocides ["some" sounds vague] in acrylic emulsions. Furthermore, I wrote reports about the results I got during my experiments.

All of these internships have been interesting. They allowed me to my knowledge of Chemistry into practice, as well as my laboratory handling skills. Furthermore, I improved new skills, namely team spirit and self-sufficiency.

Thank you in advance for your comments.

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Very impressed - I really hope someday my French is as good as your English!  The corrections I've made are really polishing up an essay that's quite good to begin with, edits more for style and consistency than for grammar.  I left in place the capitalization of Chemistry and "learnt," neither of which are used in American English, in case you're applying to UK schools.  I wish you lots of luck in your graduate applications!

About my previous internships in Chemistry

Today, I would like to tell you about my previous internships. I want to do this because it will help me to talk about my training periods for my future job interview in English.

I carried out four internships in Analytical Chemistry field. Analytical Chemistry is the part of Chemistry that determines if a compound is present in a sample or not, and if yes, in whichwhat amount.

My first training period was during my 2-year undergraduate studies in Chemistry. I worked with lab technicians in the Organic Micropollutants department. It lasted for 2 months. I ran liquid/liquid extractions of water samples with an organic phase in order to extract some organic compounds that are present in the sample. The extract was then analyzed by an other lab technicians team.

For my second internship, I worked on metal analyses in liquid, solid and gases samples by a device that is called ICP-AES (Inductively Coupled Plasma - Atomic Emission Spectrometry). I prepared samples before analyses. It lasted for ten weeks.

During my third internship, I carried out diverse analyses on acrylic emulsions in a quality control lab of a well-known company in Chemistry. Acrylic emulsions have been manufactured on the site and I performed experiments at the middle stage and at the end of the production of the product. These experiments were for example measuring the pH of the product, determine its viscosity, quantifying the amount of residual monomers, determine its solid content.

In ('for' might be better here) my last internship, I was in charge of the revalidation of two analytical methods on fast liquid chromatographie device. The methods were about the determination of the amount of acrylamide and some biocides in acrylic emulsions. Furthermore, I wrote reports about the results I got during my experiments.

All of these internships have been interesting. I could (or want to?) put into practice my knowledge in of Chemistry and my handling skill that I learnt during my schooling. Furthermore, I improved new skills, namely team spirit and self-sufficiency.

Thank you in advance for your comments.

Very good - native speaker level!