TY - JOUR

T1 - Using sequential injection analysis to improve system and data reliability of online methods

T2 - Determination of ammonium and phosphate in coastal waters

AU - Frank, Carsten

AU - Schroeder, Friedhelm

PY - 2007/2/21

Y1 - 2007/2/21

N2 - This article summarises the advantages of the sequential injection analysis (SIA) for the online determination of nutrients in coastal waters. It concentrates on techniques to improve the reliability of the gained data by continuously monitoring one or more standards and on the advantages of online standard additions and offline determination of manually collected samples with the online SIA system. These measures are advantageous during method development and validation and can be used to verify the system performance on a regular base to reduce the amount of erroneous results. No changes in the flow system are necessary and the sample throughput is only slightly reduced. These techniques have been applied to a SIA system which is able to simultaneously determine ammonium and phosphate at a rate of more than 100 samples per hour each and detection limits ( 3σ) of 0.06 μM and 0.05 μM. Results from a campaign in summer 2005 are shown.

AB - This article summarises the advantages of the sequential injection analysis (SIA) for the online determination of nutrients in coastal waters. It concentrates on techniques to improve the reliability of the gained data by continuously monitoring one or more standards and on the advantages of online standard additions and offline determination of manually collected samples with the online SIA system. These measures are advantageous during method development and validation and can be used to verify the system performance on a regular base to reduce the amount of erroneous results. No changes in the flow system are necessary and the sample throughput is only slightly reduced. These techniques have been applied to a SIA system which is able to simultaneously determine ammonium and phosphate at a rate of more than 100 samples per hour each and detection limits ( 3σ) of 0.06 μM and 0.05 μM. Results from a campaign in summer 2005 are shown.

KW - Chemistry

UR - http://www.scopus.com/inward/record.url?scp=34250892708&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/3fca8ad6-207d-3a4d-8660-5e83efe72635/

U2 - 10.1155/2007/49535

DO - 10.1155/2007/49535

M3 - Journal articles

C2 - 17671610

VL - 2007

JO - Journal of Automated Methods and Management in Chemistry

JF - Journal of Automated Methods and Management in Chemistry

SN - 1463-9246

M1 - 49535

ER -