Event_4323_-_Specification.pdf

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SPECIFICATIONS

Water Treatment & Distribution Services Division

Event 4323 - Laboratory Ion Chromatography (IC) System

OVERVIEW/PURPOSE:

The City of Minneapolis’ Water Laboratory and operational staff perform analytical testing to monitor and optimize water treatment, to ensure compliance with Minnesota Department of Health (MDH) and EPA regulations, and to protect the public health of its 500,000 residents.

The Minneapolis Water Laboratory seeks to procure and install a fully operational Ion Chromatography (IC) system with autosampler and computer. The IC system will replace and supplement current colorimetric tube tests and fluoride electrode testing, reduce chemical waste, improve safety, and provide expanded capability for monitoring regulatory and operational water quality parameters.

Quantities

All labor, equipment, and/or service for complete installation of a fully operational ion Chromatograph with auto sampler and computer.

1) An Ion chromatograph (IC) with column to separate and quantitate anions:

2) An autosampler

3) A computer and software to control the ion chromatograph and autosampler

REQUIREMENTS:

Minimum Qualifications Bidders must demonstrate that they have the resources and capability to provide the materials and services as described herein. All bidders must submit the documentation indicated below with their bid.

Failure to provide any of the required documentation shall be cause for bid to be deemed non-responsible and rejected.

Licenses, Certifications, and Registrations The Contractor shall meet the license, certification, registration, and any other requirements of the Federal, State, and local regulations with jurisdiction in such matters as necessary to perform the contractual services requested in this solicitation. Copies of such licenses, certifications, registrations, and any other requirements shall be made available upon request by the City throughout the period of the agreement.

Work to be Performed or Description of Work All labor, equipment, and/or service for complete installation of a fully operational ion Chromatograph with auto sampler and computer.

Hours of Operation

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The laboratory regular hours are 7 am to 330 PM Monday through Friday.

In the event the Contractor is required to perform work other than Monday through Friday from 7:00 a.m.

to 330 p.m. the laboratory can accommodate reasonable requests.

Contractor shall obtain all permits for inspections, tests and other services required for completion of work. Inspections shall be scheduled through the designated City Project Manager.

EQUIPMENT AND MATERIALS:

Contractor shall have in its possession all tools and equipment of the trade necessary to install the IC unit per industry standard as well as any tools, and safety equipment that may be required by OSHA, or any other regulating government agencies. Any specialty equipment needed to perform a task that is not covered by the above statement shall be presented to the City for approval and acceptance prior to work commencement. The City will consider reimbursement of approved specialty equipment.

technical Requirements and Specifications

• The IC system must meet EPA Methods 300.0 and 300.1 Parts A and B, ISO 10304-1, or equivalent local standardized methods.

• Must resolve and quantitate fluoride, chloride, nitrite, bromide, nitrate, phosphate, and sulfate.

Fluoride quantitation must not be impacted by water dip and must be fully resolved. Additional analytes such as bromate, chlorite, lactate, formate, and acetate are desirable.

• Must use inert, nonmetallic PEEK fluidic components throughout the flow path to ensure solvent compatibility and metal-contamination-free chromatography.

• Connections and fittings must require no tools or special training and must not introduce dead volume. Zero dead volume is highly desired.

Autosampler Requirements

• Capacity: at least 60 positions

• Must utilize nonmetallic fluid-path components to minimize contamination, eliminate corrosion, and ensure acid/base resistance.

• Must use displacement injection to allow loop and concentrator loading, high-precision volume delivery, individual sample filtration, and viscosity-independent injections.

• Must not require an external sampling pump.

• Must support individual filtration using a 20-micron filter located in the vial cap. Each sample must be filtered using its own filter, not reused or regenerated filters.

• Must be able to house an optional electronic 6-port or 10-port valve for sample prep, matrix elimination, concentrator loading, or injection.

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• Must support polymeric vials of 0.5 mL or 5 mL volume.

• Must support sample overlap (start next sample prep while data acquisition is underway).

• Must include vial trays with at least 50-vial capacity.

• Must deliver samples against backpressure up to 690 kPa (100 psi).

Pumping System Requirements

• Maximum operating pressure ≥ 5000 psi.

• Pressure ripple < 1% at 1 mL/min.

• Flow precision ±0.1%.

• Flow accuracy ±0.1%.

• Flow range 0.000–5.000 mL/min without pump head changes, with 0.001 mL/min increments.

• Must include user-selectable high/low pressure limits to auto-stop pump in case of leaks, restrictions, blockages, or empty reservoirs.

Conductivity Detector Requirements

• Detector must be integrated; optional UV/VIS, MS, and ICP detectors must be available.

Detector electronics must support:

• Programmable filter rise times from 0–10 s.

• Sample rate 1–100 Hz, automatic or user-set.

• Cell temperature stability < 0.001 °C.

• Cell temperature range 30–50 °C (minimum 7 °C above ambient).

• Temperature compensation 0–3% per °C.

• Must support advanced auto-ranging digital output to 18,000 µS/cm full-scale and single-range analog output to 18,000 µS/cm.

Suppression Requirements

• Electrolytic suppression must be optionally available, eliminating sulfuric acid regenerants.

• Suppressor must operate continuously without switching motors.

• Must be based on ion-exchange capillary tubing embedded in ion-exchange resin.

• Must support suppression of hydroxide, carbonate, and methanesulfonic acid eluents meeting EPA, ASTM, ISO, or similar methods.

• Must not require moving parts such as peristaltic pumps, rotors, tubing, or inline filters.

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• Vendor must provide cost of operating parts and annual maintenance requirements (suppressor, pumps, tubing, filters, rotors, chemicals, etc.).

Column Oven Requirements

• Temperature range: 30–80 °C (86–176 °F).

• Accuracy ±0.5 °C at 30 °C.

• Stability ±0.2 °C at 30 °C.

• Precision ±0.2 °C.

• Heat-up/cool-down: 20 minutes from ambient to ambient − 20 °C.

• Must house up to two high-pressure valves (6- or 10-port) and two column sets (guard + separator), 1– 9 mm i.d., up to 250 mm length.

• Must include integrated optical leak detection.

Eluent Generation Requirements

• Must be field-upgradeable and integrated to reduce footprint.

• Must use electrolytic eluent generation, producing/purifying eluent by electrolysis.

• Must allow infinitely variable gradients in a single run via current control—no additional pumps, fittings, or valves required.

• Must expose pump only to deionized water, eliminating corrosion and extending seal life.

• Must not rely on eluent concentrate dilution or burette-type systems.

• Must support KOH, LiOH, NaOH, carbonate, carbonate/bicarbonate, and MSA eluents.

• Must support at least nine time-defined gradient steps, including linear, convex, concave, and inverse profiles.

• Eluent concentration must be adjustable from 0.1–100 mM at flow rates of 0.1–3.000 mL/min.

• Eluent concentration adjustability must allow 0.1 mM increments for optimization.

Warranty Requirements

• Onsite repairs: all labor, parts, and travel covered for 1-year.

• All non-consumable parts covered for an additional 2 years.

• Remote troubleshooting and support included during warranty.

• Formal warranty statement must be provided in bid and documented in operator manual.

• Warranty must remain valid even with continuous 24/7 instrument operation.

• Optional extended warranties must be available for instrument lifetime.

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Quality of Materials Unless otherwise specified, all materials and equipment incorporated in this project shall be new and of the best quality for the purpose intended. Should the quality of a material be unspecified in the documents, the Contractor must provide the best product for the purpose intended to the satisfaction of the City Project Manager.

Materials Proposed as Equal Whenever an article or material is defined by describing a proprietary article, or by using the name of the manufacturer, the term "or approved equal", if not inserted, shall be implied.

The specific article or materials mentioned shall be understood as indicating the type, function, minimum standard of design, efficiency and desired quality, and shall not be construed to exclude other manufacturer's products of comparable quality, design and efficiency.

Makes and models of items which the Contractor alleges to be equal to those named in the specification shall be subject to the approval of the Project Manager. The use of alternate items will not be permitted by the City without written approval of the Project Manager. The contractor shall not be relieved from the responsibility for furnished articles or materials equal in quality, design and efficiency to those specified because of the approval of such alternates.

Delivery/Pick-up Identify any special instructions for Contractor (i.e. if there will be temporary storage onsite for Contractor to use, where materials should be delivered to

Delays and Delivery Failures The Contractor must keep the City advised at all times of status of parties’ agreement. If delay is foreseen, the Contractor shall give immediate written notice to the City Project Manager. Should the Contractor fail to deliver the proper item(s)/service(s) at the time and place(s) contracted for, or within a reasonable period of time thereafter as agreed to in writing by the City Project Manager, or should the Contractor fail to make a timely replacement of rejected items/services when so required, the City may purchase items/services of comparable quality and quantity in the open market to replace the undelivered or rejected items/services. The Contractor shall reimburse the City for all costs in excess of the Agreement price when purchases are made in the open market; or, in the event that there is a balance the City owes to the Contractor from prior transactions, an amount equal to the additional expense incurred by the City as a result of the Contractor's nonperformance shall be deducted from the balance as payment.

SUBCONTRACTING:

N/A One-time unit purchase

INVOICE AND PAYMENT:

All work requested under this Contract shall be placed on a City issued Purchase Order.

Contractor shall submit invoices and documentation in an electronic format, such as PDF or other format compatible with City software capabilities, in lieu of paper invoices and documentation, when so requested by City.

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Upon delivery and acceptance of the service, the Contractor shall submit an invoice detailing the appropriate charges.

Invoices shall be submitted to:

Email: submitinvoices@minneapolismn.gov

The project manager shall be copied on the email. Invoice shall contain the city project manager’s name, the department (PW-Water), and the purchase order number.

Upon receipt of invoice and final inspection and acceptance of the service, the City will render payment within thirty (30) days unless any items thereon are questioned in writing, in which event payment will be withheld pending verification of the amount claimed and the validity of the claim. The Contractor shall provide complete cooperation during any such investigation.

The city will not pre-pay for service. All bills shall state the location and dates of service being billed. All fees, taxes, charges, surcharges, and revenue payments are to be itemized.

No payment will be made for materials stored off-site except in situations where payments may be considered by the City for materials which are stored in a secured area, to be verified by the City and where the Contractor maintains adequate insurance coverage protecting specific materials from loss.

Proof of insurance shall be supplied prior to payment for any materials stored off-site.

mailto:submitinvoices@minneapolismn.gov