Qingdao Shenghan Chromatograph Technology Co., Ltd. is a leading China-based manufacturer, supplier, and service provider that specializes in the production of high-quality solid phase extraction cartridges for a wide range of applications. The company's C18 solid phase extraction cartridges are highly efficient and reliable, making them ideal for laboratory use. Made with top-quality materials, the C18 solid phase extraction cartridges are designed to provide fast and accurate separations. They offer a high retention capacity, which ensures that the analytes of interest are effectively captured and concentrated. These cartridges are suitable for a wide range of sample types, including urine, blood, plasma, and environmental samples. The C18 solid phase extraction cartridges from Qingdao Shenghan Chromatograph Technology Co., Ltd. are available in various sizes and are compatible with different types of extraction systems. They are easy to use and provide consistent and reliable results. The company also offers excellent customer support and after-sales services to ensure that customers get the best value for their money.