Sulfite Test

100

quantitative

sulfite

10-200 mg/L (SO₃^2-)

RQflex^® 10 Plus
RQflex^® 10
RQflex^® 20
for use with REFLECTOQUANT^®

reflectometric

2-8℃

The Reflectoquant Sulfite test strips are suitable for food analysis, particularly in the testing of wine and fruit juices, sulfurated foods (e.g. fresh and dried fruits), fish, shellfish, crustaceans and minced meat products after appropriate sample preparation. Sulfite ions react with a mixture of potassium hexacyanoferrate(II), zinc sulfate, and sodium nitroprusside to form a red compound that is determined reflectometrically on the RQflex. For pre-testing a sample in an economic and quick way to estimate the sulfite concentration and a possible dilution factor prior to using this quantitative method we recommend our semi-quantitative MQuant test strips for sulfite. Further quantitative determination methods can be found with our Spectroquant tests.
Method: reflectometric with test strips 10 - 200 mg/l SO₃²⁻ Reflectoquant^®

function control: conforms
Assay
- standard 1:
22 - 28 mg/l
- standard 2: 90 - 110 mg/l
- standard 3: 160 - 190 mg/l

REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany

GHS07

Warning

H319 - H412

P264 - P273 - P280 - P305 + P351 + P338 - P337 + P313 - P501

Aquatic Chronic 3 - Eye Irrit. 2

11 - Combustible Solids

WGK 2