<H1>Ammonium Test Strips 5.0-20.0 ppm Reflectoquant 1 PK *Req 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_new4.jpg" ALIGN=right ALT="Ammonium Test Strips 5.0-20.0 ppm Reflectoquant 1 PK *Req RQflex 10 #16950-1 HAZMAT fee incl" NAME="Ammonium Test Strips 5.0-20.0 ppm Reflectoquant 1 PK *Req RQflex 10 #16950-1 HAZMAT fee incl" BORDER=0 HSPACE=10> <a href="http://www.emdchemicals.com/analytics/doc/msds/MSDSU_16899.htm" target="_blank">MSDS (Material Safety Data Sheet)</a><br /><br /><br /><br /><br /><br /><br /><br /><link href="/analytics/lit.css" type="text/css" rel="stylesheet"></link><table cellspacing="0" cellpadding="8" width="90%" align="center" border="0"> <tbody> <tr> <td><h2>Reflectoquant<sup>&#174;</sup> Ammomium Test, Catalog No. 16899/1</h2> <h4>1. Method</h4> <p>NH<sub>4</sub><sup>+</sup> ions react with a chlorinating agent to form monochloramine. This in turn reacts with a phenol compound to form a blue indophenol derivative, the concentration of which is determined reflectometrically.</p> <h4>2. Measuring Range and Number of Determinations</h4> <table cellpadding="4" width="50%" align="center" border="1"> <tbody> <tr> <td valign="top" align="center">Measuring range<sup>1)</sup></td> <td valign="top" align="center">Number of Determinations</td> </tr> <tr> <td valign="top" align="left">5.0-20.0mg/l NH<sub>4</sub><sup>-</sup></td> <td valign="middle" align="center">50</td> </tr> </tbody> </table><p>1) measurement of concentrations &gt; 20mg/l NH<sub>4</sub><sup>+</sup> see section 6</p> <h4>3. Applications</h4> <p><b>Sample Material:</b><br />Wastewater<br />Soils and fertilizers</p> <h4>4. Influence of Foreign Substances</h4> <p>This was checked - in the case of interfering ions up to concentrations of 1,000 mg/l - in solutions containing 10mg/l NH<sub>4</sub><sup>+</sup>. The concentrations of foreign substances given in the table lie below the limit at which the determination is interfered with:</p> <table cellpadding="4" width="75%" align="center" border="1"> <caption><font size="2"><b>Concentrations of foreign substances in mg/l or %</b></font></caption><tbody> <tr> <td valign="top" align="right">Al<sup>3+</sup> 1,000<br /><br />Ascorbate 100<br /><br />BO<sub>3</sub><sup>3&#8211;</sup> 1000<br /><br />Br<sup>&#8211;</sup> 1,000<br /><br />Ca<sup>2+</sup> 1,000<br /><br />Citrate 1,000<br /><br />Cl<sup>&#8211;</sup> 1,000<br /><br />CN<sup>&#8211;</sup> 1<br /><br />CO<sub>3</sub><sup>2&#8211; </sup>1,000<br /><br />Cr<sup>3+</sup> 100<br /><br />CrO<sub>4</sub><sup>2&#8211;</sup> 100<br /><br />Cu<sup>2+</sup> 100</td> <td valign="top" align="right">Fe<sup>2+</sup> 10<br /><br />Fe<sup>3+ </sup>100<br /><br />K<sup>+</sup> 1,000<br /><br />Mg<sup>2+</sup> 1,000<br /><br />Mn<sup>2+</sup> 100<br /><br />Ni<sup>2+ </sup>1,000<br /><br />NO<sub>2</sub><sup>&#8211;</sup> 50<br /><br />NO<sub>3</sub><sup>&#8211; </sup>1,000<br /><br />Oxalate 1,000<br /><br />PO<sub>4</sub><sup>3&#8211;</sup> 1,000<br /><br />SO<sub>3</sub><sup>2&#8211;</sup> 100<br /><br />Tartrate 1,000</td> <td valign="top" align="right">EDTA 1,000<br /><br />Anionic surfactants<sup>1)</sup> 1,000<br /><br />Cationic surfactants<sup>2)</sup>1,000<br /><br />Nonionic surfactants<sup>3)</sup> 100<br /><br />H<sub>2</sub>O<sub>2</sub> 10<br /><br />Na<sub>2</sub>SO<sub>4</sub> 5%</td> </tr> </tbody> </table><p><sup>1)</sup> tested with Na-dodecyl sulfate<br /><br /><sup>2)</sup> tested with N-cetylpyridinium chloride<br /><br /><sup>3)</sup> tested with polyvinylpyrrolidone</p> <h4>5. Reagents and Auxiliaries</h4> <table cellpadding="4" width="410" align="center" border="1"> <tbody> <tr> <td>Please Note the Warnings on the packaging materials!</td> </tr> <tr> <td>The analytical test strips are stable at least up to the date stated on the pack when stored in the closed tube at +2 to +8&#176;C.</td> </tr> </tbody> </table><p><b>Package Contents:</b><br />Tube containing 50 analytical test strips<br />Bar code strip<br />1 bottle of reagent NH<sub>4</sub>-1 <br />1 bottle of reagent NH<sub>4</sub>2-<br />1 test vessel with stopper</p> <b>Other Reagents:</b><br /><br /><b>EM Quant<sup>&#174;</sup></b> Ammonium Test, Cat. No. 10024, measuring range 10-400mg/l NH<sub>4</sub><sup>+</sup><br />color<b>pH</b>ast<sup>&#174;</sup> Universal Indicator Strips pH 0-14, Cat. No. 9590<br /><b>Titristar<sup>&#174;</sup></b>Sodium Hydroxide Solution 1mol/l, Cat. No. SX0607H<br /><b>Titristar<sup>&#174;</sup></b>Sulfuric Acid Solution 0.5mol/l, Cat. No. SX1243H<br />Ammonium Standard Solution ready to use, 1000mg/l, NH<sub>4</sub><sup>+</sup>, Cat. No. 19812 <h4>6. Preparation</h4> <ul> <li>Check whether the ammonium content is within the measuring range<br />Use the <b>EM Quant<sup>&#174;</sup></b> Ammonium Test as a guide. Samples containing more than 20.0mg/l NH<sub>4</sub><sup>+</sup> must be diluted with distilled water.</li> <li><b>The pH must be within the range 4-13.</b> Check with pH indicator strips. If pH is lower than 4, add sodium hydroxide solution dropwise; if greater than 13, add sulfuric acid dropwise.</li> </ul> <h4>7. Procedure</h4> <p>Observe the instructions for the RQflex Reflectometer.<br /><br />The following applies to the Ammonium Test:<br /><br />Measurement procedure A. Stored reaction time: 240 sec.</p> <ul> <li>Rinse the test vessel several times with the pretreated sample solution (20-30&#176;C). Then fill to the 5-ml mark. </li> <li>Add 10 drops of reagent NH<sub>4</sub> - 1 and swirl. </li> <li>Add 1 level blue microspoon (in the cap of the NH<sub>4</sub>-2 bottle) of reagent NH<sub>4</sub> -2 and swirl to dissolve. </li> <li>Remove 1 analytical test strip and <b>immediately</b> <b>close the tube.</b> </li> <li>Press START button of the reflectometer and - <b>this is imperative</b> - at the same time place the test strip in the measurement solution <b>for 4 minutes</b>. </li> <li>10 seconds before end of reaction time, remove the test strip from the solution and vigorously shake off excess liquid. <b>Immediately</b> insert the test strip all the way into the strip adapter with the reaction zones facing the display.</li> <li>Read off the result from the display in mg/l NH<sub>4</sub><sup>+</sup>. The result is automatically stored. </li> </ul> <h4>Notes:</h4> <ul> <li>If the test strip is inserted into the adapter after the reaction time has expired, renewed depression of the START button may result in a false reading of the ammonium concentration. </li> <li>At the end of each workday, cleanse the strip adapter thoroughly with water or ethanol. </li> </ul> <h4>8. Conversions</h4> <table cellpadding="4" width="60%" align="center" border="1"> <tbody> <tr> <td><b>Units Required</b></td> <td><b>Units Given</b></td> <td><b>Conversion Factor</b></td> </tr> <tr> <td valign="top" align="left">mmol/m<sup>3</sup>NH<sub>4</sub><sup>+</sup> or N</td> <td valign="top" align="left">mg/l NH<sub>4</sub><sup>+</sup></td> <td valign="top" align="center">55.4</td> </tr> <tr> <td valign="top" align="left">mg/l N</td> <td valign="top" align="left">mg/l NH<sub>4</sub><sup>+</sup></td> <td valign="top" align="center">0.777</td> </tr> <tr> <td valign="top" align="left">mg/l NH<sub>4</sub><sup>+</sup></td> <td valign="top" align="left">mmol/m<sup>3</sup> NH<sub>4</sub><sup>+</sup> or N</td> <td valign="top" align="center">0.0180</td> </tr> <tr> <td valign="top" align="left">mg/l NH<sub>4</sub><sup>+</sup></td> <td valign="top" align="left">mg/l N</td> <td valign="top" align="center">1.29</td> </tr> <tr> </tr> </tbody> </table><h4>9. Method Control</h4> <p>To check analytical test strips, equipment, and procedure:<br /><br />Dilute ammonium standard solution to 10mg/l NH<sub>4</sub><sup>+</sup> and analyze as described in section 7.</p> </td> </tr> </tbody> </table></P> <P> <LI>Gallade Part#: 16899-1 <LI>Mfr Part#: 16899-1 <LI>Brand: EMD Chemicals EM Science <LI>Container: 1 PK of 50 Strips <LI>Misc: HAZMAT UN3266 PGII CORROSIVE </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 SRC="https://store.nexternal.com/gallade/images/Reflectoquant_Equipment_new.jpg" WIDTH=68 ALIGN=left ALT="Alcohol Test Strips 50/each Reflectoquant 1 EA *Requires RQflex 10 EMD# 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