bids are invited for ion / ise meter ( qty-01 ) with fluoride & nitrate ion selective electrode - ion / ise meter ( qty-01 ) with 1 )   fluoride ion plus sure flow combination electrode with bnc connector, quantity- 01 2 )  filling solution of fluoride ion selective electrode, 60 ml, quantity- 013 )  fluoride ionic strength adjuster ( isa ) , 475-500 ml, quantity- 014 )  nitrate half cell ion selective electrode with reference electrode along with bnc connector, quantity- 015 ) filling solution nitrate ion selective electrode, 300 ml, quantity- 016 )  nitrate ionic strength adjuster ( isa ) , 475-500 ml, quantity- 01 7 ) electrode stand, quantity- 018 )  atc probe, quantity- 019 ) stirrer probe, quantity- 01 total quantity : 1