United Scientific

Aqualytic Water Testing Reagents

Dif­fer­ent forms of reagents are re­quired for dif­fer­ent fields of ap­pli­ca­tion. It is fair to say that, in terms of qual­i­ty, tablet reagents are the best form of reagent. Thanks to pro­duc­tion tech­niques of the type used in the phar­ma­ceu­ti­cal in­dus­try and strin­gent in­ter­nal qual­i­ty stan­dards, AQU­A­LYT­IC is able to pro­duce tablet reagents for water test­ing with a guar­an­teed shelf life of 5 or 10 years.

These tablets are in­di­vid­u­al­ly sealed in high-​grade, polyethy­lene-​coat­ed alu­mini­um foil and rep­re­sent the reagent form of choice for ev­ery­day water test­ing ap­pli­ca­tions.

Users in dif­fer­ent coun­tries tra­di­tion­al­ly pre­fer forms of reagent other than tablets. AQU­A­LYT­IC pow­der reagents are de­signed to allow fast and easy test­ing. Pow­der reagents are packed in alu­mini­um foil for a wide range of ap­pli­ca­tions and pro­duc­ers rep­re­sent an al­ter­na­tive reagent form re­cent­ly in­tro­duced by AQU­A­LYT­IC.

Last but not least, liq­uid reagents are in­dis­pens­able for many test­ing tasks. Test­ing for sub­stances that are hard to de­tect, for pa­ram­e­ters like total ni­tro­gen, or for the ag­gre­gate pa­ram­e­ter COD, re­quire the use of a wide range of reagents in a form that per­mits more “ag­gres­sive” sam­ple pro­cess­ing. The pro­gramme is round­ed off by reagent tests and tube tests, mak­ing AQU­A­LYT­IC the only reagent pro­duc­er in the world that of­fers a com­plete range of reagent forms.

De­scrip­tion

DPD-​Reagents

DPD reagents are of­fered by dif­fer­ent man­u­fac­tur­ers. For qual­i­ty rea­sons, users should val­i­date the prod­ucts prior to use. DPD reagents are pro­duced on the basis of in­ter­na­tion­al stan­dard meth­ods and the ISO stan­dard method. The chem­i­cals are of crys­talline white na­ture. If a reagent (tablets or pow­der) is not white but has turned grey/brown­ish or pur­ple in colour, it has de­te­ri­o­rat­ed.

DPD liq­uid reagents which should be colour­less when fresh and may turn brown­ish in colour if the reagent has de­te­ri­o­rat­ed. The use of de­te­ri­o­rat­ed prod­ucts must be avoid­ed as they will give false re­sults.

Tablet reagents

Our test tablets are man­u­fac­tured in Ger­many under tight­ly con­trolled con­di­tions on the lat­est ma­chin­ery. Main­tain­ing the high­est qual­i­ty stan­dards per­mits AQU­A­LYT­IC to guar­an­tee our reagent tablets for a min­i­mum of 5 years, and some for as long as 10 years. We can make this promise be­cause each tablet is her­met­i­cal­ly sealed with­in an in­di­vid­u­al alu­mini­um foil pock­et, pro­tect­ing against chal­leng­ing en­vi­ron­men­tal con­di­tions. This pack­ag­ing keeps each tablet in per­fect con­di­tion, right up until the time it is need­ed by the user. Test tablets re­main the most con­sis­tent and re­li­able reagent for­mat avail­able, con­sis­tent­ly out­per­form­ing other reagent for­mats, and de­liv­er­ing max­i­mum ac­cu­ra­cy for the user.

Now we have im­proved even fur­ther on this high­ly suc­cess­ful for­mat. To the tight qual­i­ty con­trol pro­cess­es, in­te­gral to AQU­A­LYT­IC tablet man­u­fac­ture, and the sim­ple test pro­ce­dures, we have added new blis­ter pack­ag­ing. Our new alu­mini­um foil blis­ter pack­ag­ing brings added con­ve­nience to the tra­di­tion of pro­tec­tion achieved in AQU­A­LYT­IC long es­tab­lished tablet pro­duc­tion tech­nol­o­gy. With the new blis­ter strip, the user just push­es the tablet through the pro­tec­tive foil, straight into the sam­ple. Sim­ple, time-​sav­ing and prac­ti­cal.

This type of pack­ag­ing, long es­tab­lished in phar­ma­ceu­ti­cal ap­pli­ca­tions, com­bines all the ad­van­tages of pro­tec­tive foil, with con­ve­nience for the user. Each tablet is con­tained with­in an in­di­vid­u­al­ly formed foil cup, lined with the lat­est alu­mini­um com­pos­ite ma­te­ri­al, and guar­an­tee­ing prod­uct per­for­mance.

As a re­sult of im­proved seal­ing ef­fi­cien­cy, the blis­ter pack has been re­duced in size to 91 x 34mm mak­ing them even more con­ve­nient for stor­age and ship­ping. ‘BT’ is added to the end of the code to iden­ti­fy the new style of pack­ag­ing. (For ex­am­ple – 4511060BT). There are no safe­ty risks if the tablets are used in line with the in­struc­tions sup­plied. Safe­ty data sheets are avail­able for all reagents.

Liq­uid reagents

As a rule, liq­uid reagents do not con­sist of a sin­gle prepa­ra­tion but com­prise sev­er­al com­po­nents that need to be added to the sam­ple in a cer­tain order. As both the size and the num­ber of drops have a de­ci­sive ef­fect on the re­sul­tant colour com­plex, the reagents need to be added with a high de­gree of pre­ci­sion.

The use­ful life of liq­uid reagents is re­duced by tem­po­rary con­tact with oxy­gen in the air when the bot­tle is opened as well as by un­suit­able stor­age en­vi­ron­ments (pres­ence of sun­light or high tem­per­a­tures). Pro­vid­ed that the bot­tles are stored with­in the tem­per­a­ture range +6°C to +10°C, the AQU­A­LYT­IC DPD and Phe­nol Red so­lu­tions can be used for a pe­ri­od of one year from the pro­duc­tion date.

VARIO Pow­der Packs

The fast and easy use of VARIO Pow­der Packs has made them ex­treme­ly pop­u­lar for water test­ing ap­pli­ca­tions in many coun­tries through­out the world. The AQU­A­LYT­IC Pow­der Pack pro­gramme pro­vides more ex­pe­ri­enced users with a real al­ter­na­tive to ex­ist­ing mea­sure­ment sys­tems.

The Vario Pow­der Packs are pro­duced to the same high qual­i­ty stan­dards that have made AQU­A­LYT­IC tablet reagents so suc­cess­ful for sev­er­al decades. Pa­ram­e­ters from alu­mini­um and chlo­rine through to sul­phate are just some of the well-​known tests that are in­clud­ed in the VARIO Pow­der Pack range. Their chem­i­cal prop­er­ties is suit­able also for use with Hach-​Pho­tome­ter-​Sys­tems.

Cat­a­logue ex­tract

The Cat­a­logue ex­tract for the AQU­A­LYT­IC Reagents with more in­for­ma­tion, tech­ni­cal data and order codes can be down­load­ed as a PDF »