{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T21:29:43Z","timestamp":1789766983377,"version":"4.0.1"},"reference-count":39,"publisher":"American Chemical Society (ACS)","issue":"25","license":[{"start":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T00:00:00Z","timestamp":1750377600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006477","name":"National Taiwan University","doi-asserted-by":"publisher","award":["NP-37916"],"award-info":[{"award-number":["NP-37916"]}],"id":[{"id":"10.13039\/501100006477","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>A simple, fast, and highly convenient autoanalyzer is proposed and demonstrated for the colorimetric measurement of nitrite, phosphate, and silicate in natural waters. The system employs individual micro peristaltic pumps controlled by integrated electric relay modules, allowing the main flow to be regulated in a stepwise manner. Activation is initiated by a single \u201cstart\u201d button, which triggers a series of preprogramed actions, including sample loading, reagent mixing, refluxing of residual liquid, pausing for complete color development, and flushing the system with distilled water to reset the baseline to zero. Each measurement cycle is completed within 100 s with mild online heating. Real-time signals are captured via dynamic data exchange (DDE) and transferred to an Excel worksheet for instant calculation and display. Three systems are constructed and demonstrated for the determination of nitrite, phosphate, and silicate. Results indicate that over 99% completeness of the chemical reaction has been achieved with a precision better than \u00b1 0.5% R.S.D. As each system is dedicated to a specific parameter, simplifying maintenance and minimizing troubleshooting, the system is highly convenient for use aboard research vessels or in busy laboratories, catering to users who need immediate measurements in either the \u201cone-touch-one-sample\u201d or \u201cautomatic-repeating\u201d mode on a self-service basis.<\/jats:p>","DOI":"10.1021\/acsomega.5c03305","type":"journal-article","created":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T03:06:14Z","timestamp":1750388774000},"page":"27491-27500","source":"Crossref","is-referenced-by-count":4,"title":["A Micro Peristaltic\nPump-Driven Step-Flow Autoanalyzer:\nApplication to the Determination of Nitrite, Phosphate, and Silicate"],"prefix":"10.1021","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1000-8834","authenticated-orcid":true,"given":"Su-Cheng","family":"Pai","sequence":"first","affiliation":[{"name":"Institute of Oceanography National Taiwan University , ,","place":["Taipei, Taiwan, 106319"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2025,6,20]]},"reference":[{"key":"2026081811293775500_cit1","doi-asserted-by":"publisher","first-page":"189","DOI":"10.1016\/S0003-2670(00)84463-3","article-title":"Experimental comparison of flow-injection analysis\nand air-segmented continuous flow analysis","volume":"179","author":"Patton","year":"1986","journal-title":"Anal. 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