---
title: "RA-7000A mercury analyser for water, NIC | Labsense"
url: https://labsense.se/en/products/nic-ra-7000a/
description: "Discrete Direct Purge (DDP) reductive vaporisation for ultra-trace mercury in water matrices, drinking water, seawater and wastewater."
lang: en
---

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Image: RA-7000A water Hg analyser, NIC (https://labsense.se/suppliers/nic/ra7000a-hero.jpg)

NIC: https://labsense.se/leverantorer/nic/

# RA-7000A water Hg analyser

Discrete Direct Purge (DDP) reductive vaporisation for ultra-trace mercury in water matrices, drinking water, seawater and wastewater.

- Mercury analysis
- Environmental labs: https://labsense.se/segment/miljolabb/

Request a quote: https://labsense.se/kontakt/?intent=quote&supplier=nic&product=nic-ra-7000a

Contact sales: https://labsense.se/kontakt/?intent=consult&supplier=nic&product=nic-ra-7000a

## Applications

- Trace-level Hg in drinking water according to directive 2020/2184
- Hg in seawater and coastal sampling
- Industrial wastewater and process water
- Monitoring according to the Water Framework Directive
- Hg speciation with optional module

## Specifications

| Measuring principle | DDP reducing vaporisation + CVAAS |
| --- | --- |
| Detection limit | ≤ 0.5 ng/L (sub-ppt) in water |
| Measuring range | 0.5 ng/L, 100 µg/L |
| Sample types | Drinking water, seawater, wastewater, process water |
| Autosampler | Built-in, up to 60 samples |
| Reagents | SnCl₂ reducing solution |
| Standard | EPA 245.1/245.7, EN 1483, ISO 17852 |
| Throughput | ~30 samples/hour |

## Description

The RA-7000A is NIC's flagship for trace-level Hg in water. The Discrete Direct Purge technique minimises carrier gas consumption and cross-contamination between samples, resulting in low detection limits even in salt and seawater without complex sample preparation.

The system complies with EPA 245.7, EN 1483 and ISO 17852 and is routinely used in environmental monitoring, drinking water control and industrial wastewater analysis. Built-in autosampler and automatic calibration enable unattended overnight operation.

## Image gallery

Image: RA-7000A measurement chart over time (https://labsense.se/suppliers/nic/gallery/g-ra7000a-1.webp)

Image: RA-7000A detection graph (https://labsense.se/suppliers/nic/gallery/g-ra7000a-2.webp)

## Documents & datasheets

- Product page RA-7000A (Nippon Instruments / NIC) Opens in new tab ↗: https://www.hg-nic.com/ra-series/ra-7000a/

## Service & support

The RA-7000A water Hg analyzer is an instrument we service daily. Our NIC technicians handle commissioning, calibration and spare parts with documented traceability.

- Annual planned service with documented protocol.
- Original parts and consumables from the manufacturer, stocked in the Nordics.
- Fast troubleshooting from our own technicians in the Nordics.

About our service: https://labsense.se/tjanster/

## Related products

NIC

### MA-3000 mercury analyser

Thermal decomposition AAS, total mercury in solid and liquid samples without digestion.

Read more
https://labsense.se/sortiment/nic-ma-3000/

NIC

### PE-1000 petroleum Hg analyser

Direct measurement of mercury in crude oil, condensate and naphtha for refineries and gas plants.

Read more
https://labsense.se/sortiment/nic-pe-1000/

Buying guide from Labsense

## Choosing the right elemental analysis: 5 tips

Elemental analysis, ICP or dedicated mercury analysis (NIC)? Element, concentrations and sample type determine the technique.

Read the guide (https://labsense.se/guider/valja-ratt-elementanalys/)

## Request quote for RA-7000A water Hg analyser

Submit sample type, capacity requirements and operating environment and an application specialist will come back to you with a complete proposal, instrument, consumables and service contract.

Request a quote (https://labsense.se/kontakt/?intent=quote&supplier=nic&product=nic-ra-7000a)

## Documents & downloads

- RA 7000 EN Brochure Ver2.0 May 2023 1 PDF · 2.5 MB: https://labsense.se/datasheets/nic/ra-7000-en-brochure-ver2.0_may-2023-1.pdf

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