Amendment 1 - 2026027058.pdf

AMENDMENT OF SOLICITATION

Request for Quote 2026027058 Amendment No. 01

Date: 12/19/2025

ISSUED BY:

National Renewable Energy Laboratory 15013 Denver West Parkway Golden, CO 80401

PROJECT NAME: "Raman Spectrometer"

The above numbered solicitation is amended as set forth below. The hour and date specified for receipt of offers

[ ] is not extended. [x] is extended to 1/9/26 at 5 PM MST

FAILURE TO ACKNOWLEDGE THIS AMENDMENT MAY RESULT IN REJECTION OF YOUR OFFER.

EXCEPT AS PROVIDED HEREIN, ALL TERMS AND CONDITIONS OF THE SOLICITATION DOCUMENT

REMAIN UNCHANGED AND IN FULL FORCE AND EFFECT.

Subcontract Administrator: Janelle DiGregorio

1) REQUEST FOR QUOTE UPDATE Amendment No. 1 is hereby issued to extend the quote deadline to 1/9/26 at 5 PM MST. This Amendment is also issued in response to the questions received for the RFQ. Please note that some questions may have been edited to address duplicate questions or to protect business-sensitive information provided in the original questions. The essences of the original questions are not affected.

Questions are in no particular order. Questions and Answers are below.

1. Will the 59” width that includes the optical table be acceptable?

A: The current system is 51” wide, 48” long, and 19” high. The height dimension has the most flexibility. Width and length are more or less limited as the bench is 60” wide in total. The Raman needs to be a bit less wide to fit the lasers behind the Raman. If the Raman is 59” wide, we won’t have any bench space to put lasers. Length of 48” is also a rigid requirement as another instrument (hard plumbed into gas lines) sits next to this Raman system on the bench and so 48” is the max length possible.

2. What is the height limit, from the floor, that is acceptable?

A: See response to 1

3. What is the spectral resolution and spectral range requirements for the Raman system?

A: 50cm-1 to 4000 cm-1 with continuous moving grating. Sample resolutions include 532 nm ≤ 0.6 cm-1 with 1800 gr/mm grating, 325cm-1≤ 1cm-1.typical work necessitates at at least 1cm-1 but often as low as 0.2-0.3cm- 1 resolution for specific peaks when 2-3 peaks are present as shoulders. This is where focal distance also plays a role. In my experience, long focal distance systems like 800mm distance produce much higher resolution than shorter ones.

4. A 320nm laser wavelength is commonly used on new Raman instruments in place of a 325nm laser wavelength due to the future availability of HeCd laser sources providing 325nm being questionable.

Considering 325nm laser sources may soon no longer be available for purchase, and future repairs of those lasers would be in doubt, would you accept a reliable 320nm laser wavelength rather than a 325nm laser wavelength?

A: 325nm is used commonly and I have always used a 325nm in my research career using Raman systems. It’s lifetime is long enough for reasonable use into future (on the order of ~10 yrs depending on careful use). For a like-for-like replacement of current Raman system, we need to use 325nm (which current unit uses). We will NOT be going though a whole new process of PHAs, etc for an unnecessary change of laser specs.

5. Would a Raman system with a height of 24” be acceptable if the system can be placed on a table that is less than the width/depth as defined on the technical specifications?

A: Yes, see response to 1.

6. Would you be interested in an option to include the ability to acquire time resolved Raman spectral measurements on this confocal Raman microscope system, allowing for Raman measurements to be acquired on samples where blackbody radiation at high temperatures or high background fluorescence otherwise prevents the measurements?

A: Not a necessary requirement but if its available, it of course will help for time-resolved operando spectroscopy. If not present, we externally calibrate timing.

7. Could you please tell us the shipping address?

A: 16253 Denver West Parkway Golden, CO 80401-3305

USA

NLR’s Note:

Our specs are what we need as they match our current unit that we are replacing (like for like). Our specs are also based on other similar units used by state-of-the-art groups in the US i.e. they are tested and verified.