Shanghai Kehua Microplate Washer:What is the Shanghai Kehua Microplate Washer and what is its primary function?

Q: What is the Shanghai Kehua Microplate Washer and what is its primary function?

A: The Shanghai Kehua Microplate Washer is an automated laboratory instrument designed to wash 96-well microplates used in immunoassays, ELISA, and other diagnostic tests. Its primary function is to remove unbound reagents, excess samples, and residual liquids from wells by aspirating and dispensing buffer solutions. This process is critical for reducing background noise and ensuring accurate, reproducible results. Kehua, a Chinese diagnostics company, manufactures these washers to integrate with their ELISA readers and automated systems, offering efficient plate washing for clinical, research, and industrial labs.

Q: What are the key features of the Shanghai Kehua Microplate Washer?

A: Key features of the Shanghai Kehua Microplate Washer include programmable wash cycles, adjustable aspiration and dispensing speeds, and multiple wash modes such as strip or plate washing. It typically offers a residual volume of less than 2 µL per well to minimize carryover. Many models support 96-well plates, have built-in soak and shake functions, and use anti-clogging technology for reliable performance. Some versions include a touchscreen interface, USB connectivity for protocol transfer, and compatibility with automated ELISA systems. These features enhance efficiency, reduce manual errors, and maintain consistent washing quality across various assays.

Q: Which types of microplates are compatible with the Shanghai Kehua Microplate Washer?

A: The Shanghai Kehua Microplate Washer is primarily designed for standard 96-well microplates, including flat-bottom, round-bottom, and U-bottom plates. It works with both strip plates (8-well or 12-well strips) and full 96-well plates. The washer accommodates plates with different well depths, such as those used in ELISA, cell-based assays, and diagnostic kits. However, it may not be compatible with 384-well or non-standard plate formats unless specified by the manufacturer. Users should verify plate dimensions and material compatibility, as some washers require specific adapters for certain plate types to ensure proper aspiration and dispensing.

Q: How does the Shanghai Kehua Microplate Washer compare to other brands in terms of performance and reliability?

A: The Shanghai Kehua Microplate Washer is generally positioned as a cost-effective alternative to brands like BioTek, Thermo Fisher, and Tecan. It offers reliable performance for routine ELISA and diagnostic workflows, with wash efficiency and residual volume comparable to mid-range international models. Users report good durability and low maintenance when used with proper protocols. However, it may lack advanced features found in premium washers, such as dual-manifold designs or automated plate detection. For labs in China and emerging markets, Kehua washers provide excellent value, especially when paired with Kehua's ELISA readers as part of an integrated system.

Q: What maintenance and troubleshooting steps are recommended for the Shanghai Kehua Microplate Washer?

A: Regular maintenance for the Shanghai Kehua Microplate Washer includes daily flushing of the tubing with distilled water, weekly cleaning of the aspiration and dispensing pins with a mild detergent, and monthly inspection of the pump and valve system. To prevent clogging, users should perform a deep clean with a 5% bleach solution or manufacturer-recommended cleaning solution after heavy use. Common issues like uneven aspiration or leaks often stem from worn tubing or blocked pins, which can be resolved by replacing tubing or sonicating pins. Always refer to the user manual for specific error codes and calibration procedures to ensure optimal performance.

Dialogue about

Common scenarios of "Shanghai Kehua Microplate Washer"

【Sales Representative】 Good morning! Welcome to Shanghai Kehua. How can I assist you today?

【Customer】 Hello! I'm interested in your microplate washers. Could you tell me about the models you offer?

【Sales Representative】 Absolutely! Our flagship model is the Kehua Microplate Washer MW-12. It's fully automated and designed for 96-well plates. We also have the MW-8 for smaller labs. What's your application?

【Customer】 We run ELISA assays in a clinical diagnostics lab. We need high throughput and reliability.

【Sales Representative】 The MW-12 would be perfect for you. It has a 96-well format, programmable wash cycles, and a residual volume of less than 2 µL. It also features an automatic plate carrier and clog detection.

【Customer】 That sounds impressive. What about the washing efficiency? We need low background in our ELISA results.

【Sales Representative】 Our MW-12 uses a dual-action wash head that ensures thorough washing of each well. It has adjustable aspiration and dispense speeds, and you can choose between 1 to 12 wash cycles. This minimizes residual and cross-contamination.

【Customer】 Can it handle different plate types, like flat-bottom and round-bottom?

【Sales Representative】 Yes, it supports both flat-bottom and U-bottom plates. The plate carrier is adjustable, and you can save different protocols for different plate types.

【Customer】 What about software? Is it easy to program?

【Sales Representative】 The MW-12 comes with a user-friendly touchscreen interface and PC software for advanced programming. You can create and store up to 100 protocols. It also has USB export for data logging.

【Customer】 That's good. How about maintenance and service?

【Sales Representative】 We provide a one-year warranty, and our service team is based in Shanghai. We offer on-site training and regular maintenance packages. Consumables like tubing and wash heads are readily available.

【Customer】 What's the price range for the MW-12?

【Sales Representative】 The MW-12 is priced at approximately $8,000 USD, depending on configuration and accessories. We also offer leasing options. Would you like a formal quotation?

【Customer】 Yes, please. Also, can you provide references from other clinical labs using your washer?

【Sales Representative】 Certainly. We have several hospitals and diagnostic centers in China and abroad using our microplate washers. I can share contact details after we sign a non-disclosure agreement. When would you like a demo?

【Customer】 A demo would be great. How about next Tuesday at our lab?

【Sales Representative】 I'll check availability and confirm. I'll also bring a unit for a hands-on trial. Can you provide the address and a contact person?

【Customer】 Sure, I'll email you the details. Looking forward to the demo.

【Sales Representative】 Thank you! I'll send a confirmation and the quotation by end of day. Have a great day!