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Welcome to Weiss Research - your high quality, inexpensive laboratory and industrial processing pH, ORP (Redox), Ion-Selective electrode (ISE) Headquarters.

Electrodes

  pH Electrodes  
  ORP Electrodes  
  Ion-Selective
  Conductivity  
  Reference  
  Temperature  

Meters

 

pH/mV Meter

 
 

Ion/pH Meter

 
 

Conductivity

 
Reagents
 

pH Buffer & etc.

 
  ORP Standard  
 

ISE Std & etc.

 
  Conductivity Std  
     
 

Connectors

 
     
     
 
PVC membrane Nitrate Ion-Selective Electrode (NO3-)("dry" contact) :

Part Number, half-cell* 1021BN $339.00
Combination, Sealed 3021BN $439.00
Body material Epoxy
Limits, ppm 62000 ~0.4
pH range 2 ~ 11
Interferences Cl- NO2-
Reference Ag/AgCl
Cable & Connector 1 meter with BNC
Delivery time 4 weeks at least
* need a separate reference electrode

 

Calibration Reagents:

Standard

WE-2835

1000 ppm as NO3-, 500 ml

$27.00

ISA

WE-2520

2 M (HN4)2SO4, 500 ml

$23.50
ISA   KAl(SO4)212H2O ---
 

Industrial ISEs


Ammonia
Ammonium
Barium
Bromide
Cadmium
Calcium
Carbonate
Chloride
Copper
Cyanide
Fluoride
Fluoroborate
Iodide
Lead
Nitrate
Nitrite
Perchlorate
Potassium
Silver
Sodium
Sulfide
Hardness
 

Reference Articles:

2005 Weiss Research, Inc. P.O. Box 720109, Houston, TX 77272, USA, 281-879-9666 (fax), 281-561-6102

2005 Weiss Research, Inc. P.O. Box 720109, Houston, TX 77272, USA, 1-800-299-2082;  832-369-7682 (fax)