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The ENVIRONMENTAL PROTECTION AGENCY has issued a Tender notice for the procurement of a Stopped-Flow Spectrophotometer System in the USA. This Tender notice was published on 19 Jul 2017 and is scheduled to close on 02 Aug 2017, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 14987070, while the tender notice number is RFQ-OH-17-00171 and Registering on the platform.
Procurement Summary
Country: USA
Summary: Stopped-Flow Spectrophotometer System
Deadline: 02 Aug 2017
Posting Date: 19 Jul 2017
Other Information
Notice Type: Tender
TOT Ref.No.: 14987070
Document Ref. No.: RFQ-OH-17-00171
Financier: Self Financed
Purchaser Ownership: -
Tender Value: Refer Document
Purchaser's Detail
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Login to see detailsTender Details
Notice type: pre-solicitation
synopsis: stopped-flow spectrophotometer system
naics code: 334516
product service code: 6640
the u.s. Environmental protection agency (epa), office of research and development s (ord), national risk management research laboratory (nrmrl), water systems division (wsd) has a requirement for a stopped-flow spectrophotometer system (sfss) for performing in-house research. The sfss is a fully automated system, which allows absorbance, fluorescence, or conductivity to be used to determine fast reaction kinetics.
The stopped-flow spectrophotometer system must meet or exceed all of the following minimum specifications:
1. Single and double mixing stopped-flow
a fully automated, computer controlled stopped-flow system capable of absorbance and fluorescence measurements, single mixing, and double (sequential) mixing using three reagents and an age loop to incubate the first mixed solution for a set time (minimum aging time of 15 milliseconds or less and a maximum aging time of 1, 000 seconds or greater) before reacting with a third reagent in the observation cell. The stopped-flow must be capable of a dead time of 1.2 milliseconds (ms) or less with a standard cell and 0.5 ms or less with a low volume cell.
-must provide 3-4 syringes for sequential mixing.
-must allow for asymmetric mixing, with ratio mixing up to at least 10:1.
-must provide standard cell with dead time of 1.2 ms or less.
-must provide cuvette geometry able to accommodate multiple detectors.
-must provide pneumatic syringe system for fluid delivery.
-must operate in a working temperature ranging from 0ac to 60ac.
-must provide connectors compatible with water bath systems.
-low volume cell for fast kinetics, up to 2000 s-1
-must provide easily changeable low volume cell for fast kinetics with a dead time of 0.5 ms or less.
3. Multi-wavelength detector
-must provide multi-wavelength detector with variable integ...
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