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美國科學系統公司SSI    
美國Scientific Systems, Inc.（SSI）是高效液相色譜儀的專業制造商,是實現HPLC系統真正商品化的首批廠家之一。美國Scientific Systems, Inc.自1967年成立以來一直致力于HPLC泵和其它部件的設計和生產，在這個方面具有世界最高水平的技術和生產設備，為目前世界四大制泵商一。1993年，SSI開始自行注冊LabAlliance商標直接向市場供應高效液相色譜儀器，憑借其優質、價廉的特性，很快在歐美市場贏得美譽。1994年其液相色譜儀器進入中國市場，十年來擁有了大批用戶。該儀器的操作在《中國藥品檢驗標準操作規范》（2000版）有介紹。SSI高效液相色譜憑其過硬的質量，向客戶做出免費保修三年的質量承諾。  
科學系統公司（SSI）1967年成立于賓西法尼亞州立學院（也就是賓尼法尼亞大學的前身）。從公司成立至今，SSI公司主要從事精密儀器的加工生產和高壓流體技術方面的業務。雖然公司在州立學院只占地20000平方英尺，但是卻給全球范圍的用戶提供著高質量的產品。

在20世紀60年代到70年代初，SSI公司生產高壓閥（最高壓力可達到100000PSI）和核工業用的其他組件產品。公司的這種生產能力在以后新的高效液相色譜即HPLC領域（在當時看來是新的領域）再次得到了認可。SSI公司與主要的廠商PE公司合作，在80年代初生產了10個系列的泵，以及其他一些液體流路產品。

從這個時期開始直到今天，SSI公司開發出了一系列的產品，其重點集中放在了成為主要HPLC行業供應商上。由于重點放在了高壓活塞泵上，公司現在已經具有了電子方面的專業技術和儀器的設計以及配套的測試技術。公司的創新能力體現在泵柱塞桿的自動清洗設計和高壓脈沖消除器的設計，另外，公司的其他核心產品的閥和其他流路產品也繼續在生產供給。

SSI公司于1994年通過了ISO-9001的質量認證，直到今天一直在按照ISO－9001的要求進行生產。公司一直采樣非常嚴格的質量控制系統。清潔、運轉正常的設備和不斷的改進創新始終貫穿于整個生產過程中。有了這些保障，SSI公司始終保持了產品的高質量，用戶非常高的滿意度，以及非常完善的售后服務。

1994年，SSI公司成立了一個分銷公司LabAlliance，其主要是提供完整的HPLC系統，以及配件和軟件。LabAlliance建立了可以提供檢測器，自動進樣器，餾份收集器和數據采集控制軟件的網絡。這些合作者允許LabAlliance公司通過全球的分銷網絡銷售整個HPLC系統線的產品。LabAlliance的泵和檢測器在中國有著很大的市場，其他第三世界國家對這種精確的化學分析儀器的需要也正在增長。

今天，SSI公司依然在給主要的OEM儀器生產商提供泵和其他組件，其中包括Waters公司，戴安公司，PE生命科學分析公司。超高壓泵（18000psi）和組件產品也已經加入到公司的產品目錄。公司的產品由于其非常好的穩定性，以及簡單實用，性價比高，已經得到了廣泛的認可。SSI公司的優勢在于我們有能力為特殊的OEM企業定制生產產品，同時能保質保量的按時完成。

Scientific Systems, Inc. (SSI) was established in 1967 in State College, Pennsylvania, home of Penn State University. From the inception of the company through today, SSI has specialized in precision machining and high pressure fluid technology. The company maintains current operations in a 20,000 sq. ft. facility in State College, and maintains a worldwide customer base for its high technology products.
During the 1960s and early 70s, SSI produced ultra high pressure valves (up to 100,000 p.s.i.) and other components for the nuclear industry. This capability was later recognized by manufactures in the new field (at that time) of High Performance Liquid Chromatography, or HPLC. Working with a major supplier, Perkin-Elmer, SSI produced the Series-10 pump for this company through the early 80s, as well as other critical fluid path components.
From this time period through today, SSI has developed a wide portfolio of products, and has focused on becoming a premier supplier to the HPLC industry. With an emphasis on high pressure, positive displacement pumps, the company has a full engineering expertise in electrical and mechanical design as well as comprehensive machining, assembly and test operations. Innovative features like automatic piston wash and high pressure pulse dampeners have been developed and the core product line of valves and other fluid path components has also been maintained.
In 1994, SSI achieved ISO-9001 certification, and this recognition continues today. The company maintains a rigorous documentation control system, a clean, well maintained facility and pursues continuous improvement throughout all operations. Through these disciplines, SSI maintains the highest levels of product quality and customer satisfaction, along with full service capability.
Also in 1994, SSI launched a distribution division called LabAlliance, dedicated to providing a complete line of HPLC systems, accessories and software. LabAlliance established a comprehensive supply chain with manufacturers of Detectors, Autosamplers, Fraction Collectors and Data Acquisition & Control Software. These partnerships allow LabAlliance to supply a full line of HPLC systems through a worldwide network of distributors. LabAlliance pumps and detectors have found a major market niche in China and other third world countries where the need for accurate chemical analysis continues to grow.
Today, SSI continues to provide pumps and components to major OEM instrument manufacturers, including Waters Corporation, Dionex Corporation and PerkinElemer Life & Analytical Sciences. Ultra High Pressure Pumps and Components (up to 18,000 p.s.i.) have also been added to the product line. The company’s products are highly regarded for their reliability, ease of use and value. SSI’s strength is in our ability to customize products for specific OEM applications and then provide those products on time with the highest Quality.

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