<h1>Aluminum Test Strips 5-50 ppm Reflectoquant 1 PK *Requires RQflex 10 #16950-1 HAZMAT fee incl -- Gallade Chemical Shopping Cart</h1> <i><a href="http://galladechem.com/freeship.htm" target="_blank"><img src="https://www.nexternal.com/gallade/images/freeship_truck.gif" width="160" height="12" border="0"></a></i> <p> <img src="https://store.nexternal.com/gallade/images/Reflectoquant_Equipment_new2.jpg" align="right" alt="Aluminum Test Strips 5-50 ppm Reflectoquant 1 PK *Requires RQflex 10 #16950-1 HAZMAT fee incl" name="Aluminum Test Strips 5-50 ppm Reflectoquant 1 PK *Requires RQflex 10 #16950-1 HAZMAT fee incl" border="0" hspace="10" /> <strong>REFLECTOQUANT&#174; Aluminum Test Strips, 5-50 ppm, 16994 </strong><br /><br /><strong>Additional Production Information </strong><br />Method: Reflectometric <br />Color Reaction: Al3+ ions are transformed into aluminate, which in turn reacts with aurin tricarboxylic acid to form a red complex. The concentration of this complex is determined reflectometrically. <br />Measuring Range: 5-50 ppm <br />Determinations: 50 <br />Storage Conditions: +15 to +25&#176;C <br />Shelf Life: 36 months (from day of production) <br /><br /><strong>Reflectoquant&#174; Aluminum Test, Catalog No. 16994/1</strong><br />1. Method<br />Al3+ ions are transformed into aluminate, which in turn reacts with aurin tricarboxylic acid to form a red complex. The concentration of this complex is determined reflectometrically. <p>2. Measuring Range and Number of Determinations<br />Measuring Range1) Number of Determinations <br />5.0 - 50.0mg/l Al 50 </p> <p>1)for measurement of concentrations &gt; 50.0 mg/l Al, see section 6</p> <p>3. Applications<br />Sample Material: Industrial water, Wastewater, Food</p> <p>4. Influence of Foreign Substances<br />This was checked - in the case of interfering ions up to concentrations of 1,000mg/l - in solutions containing 5 and 25mg/l Al. The concentrations of foreign substances given in the table lie below the limit at which the determination is interfered with:</p> <p>Concentrations of Foreign Substances in mg/l or %</p> <p>Ag+ 1,000 Mn2+ 100 Anionic Surfactants1) 1,000 <br />Cd2+ 1,000 MnO4- 10 Cationic Surfactants2) 1,000 <br />Cl- 1,000 NO2- 1,000 Nonionic Surfactants3) 1,000 <br />CN- 1,000 NO3- 1,000 NaCl 2.5% <br />Co2+ 10 OCN- 1,000 <br />Cr3+ 10 Pb2+ 100 <br />CrO42- 1,000 S2- 10 <br />Cu2+ 1 Sn2+ 100 <br />F- 100 SO32- 10 <br />Fe2+ 10 Zn2+ 1,000 <br />Fe3+ 10 </p> <p>1)tested with Na-dodecyl sulfate</p> <p>2)tested with N-cetylpyridinium chloride</p> <p>3)tested with polyvinyl pyrrolidone</p> <p>5. Reagents and Auxiliaries<br />The analytical test strips are stable at least up to the date stated on the pack when stored in the closed tube at +15 to +25&#176;C.</p> <p>Package Contents:<br />Tube containing 50 analytical test strips<br />Bar code strip <br />1 bottle of reagent Al&#8211;1<br />1 bottle of reagent Al&#8211;2 <br />1 test vessel</p> <p>Other Reagents:<br />Universal indicator strips pH 0-14. Cat. No 9590</p> <p>EM Quant&#174; Aluminum Test, measuring range 10-250 mg/l, Cat. No. 10015</p> <p>Potassium hydroxide solution 1 mol/l, Cat. No. 9918/2</p> <p>Hydrochloric acid 1 mol/l Cat. No. HX0603D</p> <p>Aluminum nitrate nonahydrate GR, Cat. No. AX0705</p> <p>6. Preparation<br />Check whether the aluminum content is within the measuring range. Use the EM Quant&#174; Aluminum Test as a guide. Samples containing more than 50.0mg/l Al must be diluted with distilled water. <br />The pH must be within the range 3-8. Check with universal indicator strips. If pH is lower than 3, add dilute potassium hydroxide solution dropwise; if greater than 8, add dilute hydrochloric acid dropwise. <br />7. Procedure<br />Observe the instructions for the RQflex Reflectometer. <br />The following applies to the Aluminum Test:</p> <p>Measurement Procedure B<br /></p> <p>Stored waiting time: 60 sec.</p> <p>Stored reaction time: 5 sec.</p> <p>Rinse the test vessel several times with the pretreated sample solution (15-30&#176;C) then fill to the 5-ml mark. <br />Add 1 drop of reagent Al-1 and swirl. <br />Remove 1 analytical test strip and immediately reclose the tube. <br />Immerse both reaction zones of the test strip in the measurement solution for approx. 2 sec. <br />Vigorously shake off excess liquid from the test strip <br />Place 1 drop of reagent Al&#8211;2 on each of the reaction zones and --this is imperative--at the same time press START button of the reflectometer. <br />After the end of the waiting time, immediatelyshake off excess liquid from the test strip vigorously <br />The reaction time is shown on the display.</p> <p>Insert the test strip all the way into the strip adapter with the reaction zones facing the display and press START button of the reflectometer. <br />Read off the result from the display in mg/l Al. The result is automatically stored. <br />Note:<br />At the end of each workday, cleanse the strip adapter thoroughly with water or ethanol. If necessary, use a 1:1 mixture of hydrochloric acid 1 mol/l and ethanol.</p> <p>9. Method Control<br />To check analytical test strips, equipment and procedure:</p> <p>Dissolve 1.38g of aluminum nitrate nonahydrate in distilled water, make up to 100ml, and mix.</p> <p>Al concentration 1,000mg/l.</p> <p>Dilute this standard solution to 25mg/l Al and analyze as described in section 7.<br /></p> </p> <p> <ul style="padding-left: 15px"> <li>Gallade Part#: 16994</li> <li>Mfr Part#: 16994-1</li> <li>Brand: EMD Chemicals EM Science</li> <li>Container: 1 PK of 50 Strips</li> <li>Misc: HAZMAT UN1814 PGII CORROSIVE</li> </ul> </p> <p><b>Other products in the category <a href="http://store.galladechem.com/Category5" title="Chemicals for Laboratory">Chemicals for Laboratory</a> / <a href="http://store.galladechem.com/Category81" title="Test Kits/Strips">Test Kits/Strips</a>:</b> <br clear="left"><br /><a href="http://store.galladechem.com/Product16344" title="Alcohol Test Strips 50/each Reflectoquant 1 EA *Requires RQflex 10 EMD# 16950-1"><img 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