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Starch in Maize using polarimeter

Hi, Please my answer is that the customer want to know % of starch in Maize used for feedstuff which he thinks it should give more than 60% using the polarimeter. with the result we get after calculation we find only 44%. the polarimeter is well calibrated and when we use the calibration quartz , we get exact reading of the quartz which means the polarimeter is good . do we really have to find more than 60% of starch content after calculations? Is there anything that might affect the result, like temperature, sample filtration , ...? Thank you in advance.

Equipment: Kruess P8000

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Adil Chrom
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hz618211322
It is not necessarily expected to find more than 60% starch content in maize using a polarimeter. While maize can have a high starch content, the actual percentage can vary depending on factors such as the specific variety of maize and the conditions in which it was grown. Regarding the potential factors that might affect the accuracy of the results, temperature and sample filtration can indeed impact polarimeter readings. It is important to ensure that the sample is properly filtered to remove any impurities or particulate matter that could affect the readings. Additionally, temperature can affect the polarimeter readings, so it is essential to maintain a consistent temperature throughout the testing process. It's also possible that there could be other factors affecting the accuracy of the results. For example, there may be variations in the sample preparation or testing procedures that could affect the readings. It is important to follow the testing procedures closely and make sure that all equipment is properly calibrated and maintained. If you have any doubts or concerns about the accuracy of your results, it may be helpful to consult with a laboratory expert or the manufacturer of the polarimeter for guidance. They may be able to provide additional insights or recommendations on how to improve the accuracy of your measurements.
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