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Description
A method of synthesizing polyester toner resins comprises: polycondensing polycarboxylic acids, polyols and free fatty acids to form low molecular weight polyester resins with alkenyl group or hydroxyl group or a combination of both; wherein at…
Classification
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Description
The present invention relates to a portable arsenic detection system and a method of detecting the presence of arsenic in an aqueous sample more particularly for measuring the arsenic concentration in quantitative measurements. Based on these and…
Classification
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