---
title: "Provision of a Total Alkalinity (TA) and Dissolved Inorganic Carbon (DIC) Analytical System"
ocid: "ocds-h6vhtk-05e2ab"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05e2ab"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05e2ab.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05e2ab.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NATIONAL OCEANOGRAPHY CENTRE"
published: "2025-11-17"
---

# Provision of a Total Alkalinity (TA) and Dissolved Inorganic Carbon (DIC) Analytical System

Buyer: NATIONAL OCEANOGRAPHY CENTRE  
Current stage: Award  
OCID: ocds-h6vhtk-05e2ab

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## Summary

The National Oceanography Centre, a sub-central government public authority located in Southampton, UK, has completed the procurement of a Total Alkalinity (TA) and Dissolved Inorganic Carbon (DIC) Analytical System. This procurement falls under the goods category and is specifically classified under the CPV code 38426000 for Coulometers. The tender process was initiated on 17th November 2025 and utilised a direct procurement method, characterised as 'Below threshold - without competition', with Marianda Marine Analytics and Data being awarded the contract due to their exclusive capability to supply the required system. The contract is active from 17th November 2025 to 16th November 2026, with a contract value of USD 52,770.

This procurement presents significant growth opportunities, especially for businesses involved in marine analytical equipment supply and manufacture. The requirement for a sophisticated TA and DIC Analytical System underscores the demand for advanced technology solutions in climate-monitoring activities. Companies that specialise in similar high-tech instruments and have the capacity to provide innovative solutions for environmental monitoring would be well-suited to compete in such tenders. In addition, businesses that can offer competitive alternatives to the exclusive solutions currently provided by companies like Marianda could find lucrative opportunities in future procurement processes.

## Notice

NOC requires a total alkalinity (TA) and dissolved inorganic carbon (DIC) analytical system for the high-quality analysis of seawater samples in support of ongoing carbon observing and climate-monitoring activities. MARIANDA is the exclusive manufacturer and supplier of the only commercially available system capable of analysing both TA and DIC from the same sample within a single instrument. This combined approach reduces sampling uncertainty, minimises water demand during research cruises, and delivers significant efficiencies in laboratory and shipboard space.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/074478-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 17 Nov 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 17 Nov 2025 |
| Contract period | 17 Nov 2025 - 16 Nov 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £52,770 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NATIONAL OCEANOGRAPHY CENTRE |
| Locality | SOUTHAMPTON |
| Post town | Southampton |
| Postcode | SO14 3ZH |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ3 Hampshire and Isle of Wight |
| ITL 3 | TLJ32 Southampton |
| Local authority | Southampton |
| Electoral ward | Bargate |
| Westminster constituency | Southampton Itchen |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | MARIANDA MARINE ANALYTICS AND DATA |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)

### Codes

- 38426000 - Coulometers

## Release History

- 17 Nov 2025 at 15:38 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/074478-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/074478-2025
  17th November 2025 - Contract details notice on Find a Tender

## Notice URLs

- https://noc.ac.uk/
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05e2ab. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05e2ab.json.