Procurement of a nitrogen evaporator for organic solvents
The subject of this public procurement procedure is the procurement of a nitrogen evaporator for organic solvents for the needs of the Water Laboratories Sector. The Laboratory is accredited to determine organochlorine and organophosphorus pesticides, PAHs, mineral and total oils in surface, groundwater and wastewater. Water samples must be prepared by solid-phase extraction for the analysis of the aforementioned analytes, after which the extracts are evaporated to dryness. Prior to sample extraction, cartridge preparation is carried out, which includes rinsing and conditioning, followed by sample passage and analyte elution. The resulting extracts are then evaporated to dryness in a nitrogen stream using the existing evaporation systems. Due to the constant increase in monitoring sites and, consequently, the number of samples, it is necessary to procure new evaporation systems.
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Predmet ovog postupka javne nabavke je nabavka azotnog uparivača organskih rastvarača za potrebe Sektora laboratorija za vode. U Laboratoriji su akreditirane metode za određivanje organohlornih i organofosfornih pesticida, PAH-ova, mineralnih i ukupnih ulja u površinskim, podzemnim i otpadnim vodama. Vodene uzorke potrebno je pripremiti ekstrakcijom na čvrstoj fazi za analize pomenutih analita, nakon čega se ekstrakti uparavaju do suha. Prije ekstrakcije uzoraka vrši se priprema kertridža koja obuhvata ispiranje i kondicioniranje, nakon čega slijedi propuštanje uzorka i eluiranje analita. Dobijeni ekstrakti se potom uparavaju do suha u struji azota sa postojećim sistemima za uparavanje. Zbog konstantnog povećanja monitoring mjesta a samim tim i broja uzoraka, potrebno je nabaviti nove sisteme za uparavanje.
- Notice type
- Contract award
- Published
- 21.10.2026 09:15
- External ID
- ba_ejn-procedure-2754912
- Procedure
- Open procedure
- Source
- next.ejn.gov.ba