requirement of instruments and consumable chemicals (uv vis spectrophotometer) -- 1 fixed volume pipettes 1ml. now, silent and effortless with textured adjustment knob for a firmer feel (thermofisher/eppordorf/brnds) alongwith 200 tips autoclavable. 2 fixed volume pipettes 10 ml now, silent and effortless with textured adjustment knob for a firmer feel (thermofisher/eppordorf/brnds) alongwith 10 tips autoclavable 3 fluoride standard- 1000 ppm nist traceable with certificate make merck sigma- 500ml atleast with 2-3 years expiry date with iso: 17034 4 iron standard - 1000 ppm nist traceable with certificate make merck sigma- 500ml atleast with 2-3 years expiry date with iso: 17034 5 nitrate standard- 1000 ppm nist traceable with certificate make merck sigma- 500ml atleast with 2-3 years expiry date with iso: 17034 6 photometric test kit for measurement of iron fe number of tests: 100 (powder pillows) sample volume required: 10ml compatible with photometers: 0.00 - 3.00 mg/l fe atleast with 2-3 years expiry date 7 photometric test kit for measurement of nitrate no2 number of tests: 100 (powder pillows) sample volume required: 10ml compatible with photometers: photoflex 0.00 - 0.33 mg/l no2-n: 0.00 - 1.08 mg/l no2atleast with 2-3years expiry date 8 photometric test kit for measurement of sulfate so4number of tests: 100 (powder pillows)sample volume required: 10mlcompatible with photometers:photoflex 0 - 70 mg/l so4 atleast with 2-3 years expiry date 9 round 16 mm quartz cells round cuvettes, empty (16 mm diameter). (as compatiable with instrument) 10 sulfate standard- 1000 ppm nist traceable with certificate make merck sigma- 500ml atleast with 2-3 years expiry date with iso: 17034 11 cmcfor spectrophtometer for 2 years after completion of 3 years warranty 12 credit of old dr 6000 spectrophotometer (unrepaired) complete in all respect. 13 us vis spectrophotometer with double beam source lamp: tungsten(visible range), typical wavelength range: 190-1100 nm, wavelength accuracy: ± 1 nm but not less than±0.5 nm, spectral bandwidth: 2 nm but it should not be more than 4 nm, scanning speed: max 2000 nm/min (in 1 nm steps), etc. and instrument complete in all respect as per standard specifications exclusive of gst.(make: hach/ wtw-xylem/ thermo orion/ lovibond), warranty: 3 years. 14 10mm 1 rectangular cuvette quartz, layer thickness 10 mm. quartz cells (as compatiable with instrument) 15 20mm- 1 rectangular cuvette quartz, layer thickness 20 mm. (as compatiable with instrument) 16 50 mm quartz cells -1 rectangular cuvette quartz, layer thickness 50 mm. (as compatible with instrument)