Shanghai Xinzhuang Instrument Co., Ltd. has developed the LNB brand solid-phase extraction (SPE) device, which is energy-efficient, eco-friendly, and at the forefront of domestic technology. This advanced SPE system uses a solid adsorbent to capture target compounds from liquid samples, effectively separating them from the sample matrix and interfering substances. The target compound is then eluted using a suitable solvent or desorbed by heating, enabling efficient sample separation, purification, and concentration. This process significantly reduces matrix interference and enhances detection sensitivity. The device is widely used in food safety testing, agricultural residue monitoring, medical and health research, environmental protection, commodity inspection, tap water analysis, and chemical production laboratories.
Here are some frequently asked questions about solid-phase extraction:
First, what loading method is most suitable for solid-phase extraction?
Currently, both positive and negative pressure loading methods are available in the market. However, negative pressure loading often leads to unstable flow rates, resulting in poor recovery rates and low instrument repeatability. Most leading manufacturers now prefer positive pressure loading, as it allows for precise control of the flow rate using a high-precision syringe pump. This not only improves the instrument’s repeatability but also ensures a more consistent sample recovery rate.
Second, what is the expected processing speed for automated solid-phase extraction?
The typical SPE cycle for a single sample takes around 20 minutes, and most manufacturers offer similar performance. To increase efficiency, the faster the instrument can process multiple samples simultaneously, the better. The fully automated LNB solid-phase extraction system features 6 channels with 3 different modes, offering flexibility and maximizing sample throughput.
Third, can the automatic SPE instrument prevent blockage during the extraction process?
One common issue with automated systems is flow path clogging, which can lead to instrument failure, sample leakage, and cross-contamination. The LNB system is equipped with an integrated high-sensitivity pressure sensor. If the pressure exceeds 0.6 MPa, the system automatically alerts the user, preventing damage and ensuring safe operation.
Fourth, how does the automatic SPE instrument manage cross-contamination?
Some instruments use shared pipelines for samples and solvents, increasing the risk of contamination. Especially in systems without proper cleaning functions, residues can build up quickly, leading to experimental errors. The LNB system employs a flow separation unit that automatically selects the appropriate solvent and directs organic waste into a separate channel, effectively minimizing cross-contamination.
In addition to the solid-phase extraction device, Shanghai Xinzhuang Instrument Co., Ltd. also develops the LNB brand carbon dioxide incubator, known for its energy efficiency, environmental friendliness, and industry-leading performance. As a professional manufacturer, the company ensures reliable and cost-effective solutions tailored to meet the needs of various scientific and industrial applications.
Beauty Machine
Hyauronic Acid Pen,Laser Hair Remove Machine,Dr Pen,Tattoo Remover Carbon Peeling Machine,Face Massager Face Neck Beauty Machine
WEIYE TECHNOLOGY CO.,LTD , https://www.radiassero.com