近日，知名科學儀器制造商Sciex，已告知超過2000多個質譜儀用戶：立即關閉儀器。其原因是由安捷倫科技供應的渦輪泵存在“災難性的故障”，可能導致嚴重傷害或死亡。“到目前為止”Sciex表示“尚無用戶因此受傷”。

英文原文報道于C&EN周刊3月27日2017年第13期第3頁。（C&EN：Chemical & Engineering News，化學與工程新聞是由美國化學學會出版的周刊。覆蓋歐洲、美國和亞洲的編輯和記者涵蓋了科學、技術、商業、工業、政府政策，教育就業方面的化學領域咨詢）

【報道還原】爆炸泵觸發SCIEX質譜警報

全球安全公告建議暫時關閉作為分析化學主力的質譜工具

作者Marc S. Reisch 現就職于化學工程新聞 高級通訊員，杜克大學化學與工程新聞專業畢業

圖為：可能會碎裂并高速彈出的TV801渦輪泵，來源：Sciex

知名科學儀器制造商Sciex，已告知超過2000多個質譜儀用戶：立即關閉儀器。其原因是由安捷倫科技供應的渦輪泵存在“災難性的故障”，可能導致嚴重傷害或死亡。“到目前為止”Sciex表示“尚無用戶因此受傷”。

根據3月13日對其擁有API 4000、API 4000和API 5000 QTRAP的用戶所發出的安全公告， API 系列質譜中TV801渦輪泵的轉子存在突然碎裂并高速彈出。該泵用于在儀器的真空腔中產生高的負壓。

停止使用API 4000，將嚴重損害經濟效益，Bruce S. Levison說。他在在托萊多大學醫藥與生命科學學院擔任助理教授，使用該質譜來分析藥物相關化合物的組織樣本。他表示：“我們的收入每天至少損失數千美元。”

圖為：SCIEX TV801渦輪泵的單螺旋局部特寫

SCIEX和安捷倫尚未確定產品隱患的根本原因。“這種情況不論是從龐大的安裝規模和影響還是建議危險性，都是前所未有的” Sciex公司全球銷售與服務高級副總裁，Inese Lowenstein先生，告訴C＆EN。

這些質譜儀主要應用于各種化學分析，在全球范圍內的科研院所、企業和政府實驗室，Sciex說。出售的儀器品牌包括SCIEX，AB SCIEX，MDS Sciex和Applied Biosystems（美國應用生物系統）。

最初的安全警告，是由于今年早些時候一個星期內產生的，兩個災難性的渦輪泵故障。SCIEX通知安捷倫故障后，雙方進行了聯合調查，一致建議對用戶發出關機的安全警告。Lowenstein先生說，Sciex安全警告發出后沒有再接到任何更多的災難性故障報告。

這兩臺發生故障的TV801系列均于2002制造，Lowenstein先生說，并于2008停產，替代升級產品是采取雙螺栓固定housing 的TV902。他指出：TV801只有單一的螺栓，在1500系列和2000系列的API質譜上在使用的更老型號的泵均應關閉。

SCIEX希望受影響的儀器暫時停止使用。直到四月中旬，安捷倫準備好維修工具包，SCIEX的技術人員安裝開始。Lowenstein先生透露，安捷倫，SCIEX和維修客戶所產生的成本還未確定。

Scott Walden先生，是奧蘭多一家專業修理渦輪泵第三方公司的渦輪真空產品專員。他估算維修渦輪泵的成本，更換一個全新的TV-902泵：26000美元。翻新一套價格在12000美元和18000美元之間。

Walden的許多客戶出于安全責任考慮，已經關閉了他們的SCIEX質譜儀，但迫切期盼儀器重新順暢工作。“我們有20個客戶的等待名單，要求更換902泵，”Walden說。

【報道英文原版呈現】

Volume 95 Issue 13 | p. 3 | News of The Week

Issue Date: March 27, 2017

Exploding pumps trigger Sciex mass spectrometer alert

Global safety notice recommends shutdown of workhorse analytical chemistry tools

By Marc S. Reisch

The TV 801 turbo pump, which may fail and eject fragments.

Credit: Sciex

Scientific instrument maker Sciex has told owners of more than 2,000 mass spectrometers to immediately shut down the instruments because a catastrophic failure of turbo pumps manufactured by Agilent Technologies could “result in serious injury or death.” To date, Sciex says, no one has been injured.

According to a safety notice dated March 13 for owners of API 4000, API 4000 Qtrap, and API 5000 model mass spectrometers, the rotors of the TV 801 turbo pump can suddenly fragment and be ejected at high speeds. The pumps are used to create a high negative pressure in the instrument’s vacuum chamber.

Taking his API 4000 out of service will be financially crippling, says Bruce S. Levison, an assistant professor at the University of Toledo College of Medicine & Life Sciences who uses the machine to analyze tissue samples for pharmacologically relevant compounds. “We stand to lose thousands of dollars per day in revenue,” he says.

Closeup of Sciex TV 801 turbo pump showing single-bolt arrangement.

Credit: Sciex

Sciex and Agilent have yet to determine the root cause of the failure. “This situation is unprecedented both in the sheer size of the installation base affected and in the criticality of the recommendation,” Inese Lowenstein, Sciex’s senior vice president of global sales and service, tells C&EN.

The workhorse mass spectrometers are used for a variety of chemical analyses and are in place around the world in academic, industrial, and government settings, Sciex says. The instruments were sold under brand names including Sciex, AB Sciex, MDS Sciex, and Applied Biosystems.

Two catastrophic turbo pump failures within a week of each other earlier this year led to the safety notice. Sciex notified Agilent of the failures, and the two undertook a joint investigation leading to the shutdown recommendation. Lowenstein says Sciex has not received any more catastrophic failure reports since the notice first went out.

The two TV 801 pumps that failed were manufactured in 2002, Lowenstein says. The pump was discontinued in 2008 and replaced with a new design, the TV 902, which has double bolts securing the housing. The TV 801 has single bolts. Lowenstein figures that between 1,500 and 2,000 of the API model instruments in use have the older pump and should be shut down.

Sciex expects that affected instruments will be out of service until Agilent designs and assembles a repair kit that Sciex technicians will install sometime starting in mid-April. Costs to -Agilent, Sciex, and customers for the repairs are still undetermined, Lowenstein says.

According to Scott Walden, a product specialist at Turbo Vacuum, an Orlando-based firm that repairs turbo pumps, a brand new TV-902 pump costs $26,000. Refurbished units cost between $12,000 and $18,000.

Many of Walden’s clients have shut down their Sciex mass spectrometers for liability reasons and are desperate to get the instruments back to work. “We have a waiting list of 20 clients asking for the 902 pump,” Walden says.

Chemical & Engineering News

ISSN 0009-2347

Copyright ? 2017 American Chemical Society

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