Apologies but I find it a strange custom to analyse your oil so regularly, I've never had to do lab samples, providing you service the engine as per the manufacturers recommendations why would you need to ?
The only time I would sample engine oil would be from a strange truck/boat engine I was thinking of buying, for a quick test simply put a dot of oil on the end of your tongue, if its bitter, don't start the engine, service the engine immediately with flushing oil and then regular oil, if its sweeter then as soon as practically possible.