Latest ph buffer solution Tenders | Government ph buffer solution Tenders

Central Government And Public Sector

CTN :45529789

03 Jul, 2026 20.00 Lacs

Visakhapatnam - Andhra Pradesh

Tender For supply of inorganic chemicals , organic chemicals , crm , other chemicals , solvents

Corporations And Associations And Others

CTN :45368755

29 May, 2026 2.50 Crore

Multi City - Bihar

Tender For corrigendum : supply of agriculture inputs viz. p.p. chemicals, micronutrients, biofertilizers, organic fertilizers, bio-agents, pheromone traps & lure etc. in different schemes of department of agriculture, govt. of bihar for year 2026- 27

CTN :45237605

09 Jun, 2026 NA

Khorda - Odisha

Tender For corrigendum : supply of ph buffer solution ph4.0 crm chemical , ph buffer solution ph7.0 crm chemical , ph buffer solution ph9.2 crm chemical , ph buffer capsules ph 4.0 , ph buffer capsules ph7.0 , ph buffer capsules ph 9.2 , conductivity solution 1.41 ms cm-crm chemical , standard turbidity solution 1000 ntucrm chemical , magnesium chloride mgcl2.6h2o , sodium acetate ch3coona.3h2o , potassium nitrate kno3 , acetic acid 99 percent , barium chloride , sodium sulfate anhydrous , sulfuric acid conc. , sulfate standard solution1000ppm crm chemical , hydrochloric acid concentrate hc , hydroxylamine hydrochloride nh2oh.hcl , ammonium acetate nh4c2h3o2 , acetic acid glacial conc.acetic acid , phenanthroline , potassium dichromate crm chemical , iron standard solution1000ppm crm chemical , filter paper whatman41 , extran neutrallaboline for cleaning of glassware , spadns , fluoride standard solution1000ppmcrm chemical , fluoride standard solution with tisab ii 1 ppm , fluoride standard solution with tisab- ii10 ppm , tisab-ii for fluoride , fluoride electrode filling solution , hydrochloric acid ampules 1n , nitrate standard solution 1000ppmcrm chemical , interference supressor solution iss , ionic strength adjuster isa , nitrate electrode filling solution , silver nitrate agno3 , potassium chromatek2cro4 , sodium chloride nacl , conc. ammonium hydroxide nh4oh , sodium chloride - crm chemical , sulfuric acid ampules 0.1n , sodium carbonate na2co3 , bromocresol green indicator solution , universal indicator solution , methyle red indicator solution , phenolphthalein indicator solution , sodium carbonate crm chemical , edta disodium salt ampules 0.1m , edta disodium salt , ammonia buffer solution , eriochrome black t ebt , calcium carbonate anhydrous , calcon indicator , sodium hydroxide , calcium carbonate crm chemical , collilort 18 , quanty tray , culture media plates for count of both tc ec bacteria along with 0 45 micron membrane filter paper pack of 100 test , culture media plates for count of fc bacteria along with 0 45 micron membrane filter paper pack of 100 test , rt pcr test kit for salmonella typhi , rt pcr test kit for vibrio cholerae , rt pcr test kit for hepatitis a , rt pcr test kit for hepatitise , rt pcr test kit for entero virus , rt pcr test kit for rota virus , dna extraction kit for 12 reactions , rna extraction kit for 12 reactions , mtcc pure culture e coli , mtcc pure culture enterobacter aerogenes , mtcc pure culture pseudomonas aeruginosa , mtcc pure culture enterococcus faecalis , spore strips geobacillus stearothermophilus , soyabin casein digest agar plate with 5 percent sheep blood , 47 mm dia filter paper for pcr , silver peroxide , ethanol , 500 cu platinum- cobalt color standard solution , platinum-cobalt color standard crm chemcial , nitric acid concentrate , nitric acid icp ms grade , setup solution for icpms nexion 2000 , dual detector solution for icpms nexion 2000 , multielement standard 100ppm for icpms nexion 2000 , mercury standard solution for icpms nexion2000 , boron standard soltion for icpms nexion 2000 , arsenic standard solution for icpms nexion-2000 , 25 to 35 dia syringe filter paper capsules for icp ms , 15ml centrifuse tube with screw cap-graduated pp for icp ms , 50ml centrifuse tube with screw cap-graduated self-standing pp for icp ms , total dissolved solids tds crm chemical , potassium iodide , starch soluble , sodium thiosulfate , sodium bicarbonate , potassium dichromate , n hexane //bid details 2 / 59

CTN :45415545

18 Jun, 2026 NA

Coimbatore - Tamil Nadu

Tender For purchase of chemicals - purchase of chemicals, kjedhal digestion apparatus - 6 test property- specificationinstrument type-kjedahl apparatusanalytes -total nitrogen (n)test capacity- 6 testsmeasurement method- kjeldahl digestion method (chemical digestion)detection range - nitrogen: mg/g to % levelaccuracy- 1 2% (method dependent)response time- 1 2 hours per digestion cyclesample type-soil, plant tissue, organic matterpower supply - 220 240 v ac, 50 hz heating system - electric digestion heater / mantle, teaching kit for plants fusion property- specificationinstrument type-demonstration kitanalytes- carbon dioxide (co ) fixation (conceptual)test capacity - group demonstration measurement method- visual/ model- based explanation response time - immediatesample type - lant models/ teaching aids 25exp kit,

State Government

CTN :45418547

23 Jun, 2026 48.19 Lacs

Kolkata - West Bengal

Tender For supply and delivery of chemicals and glassware for the 15 (fifteen) nos. laboratories in the district of south 24 parganas under alipore division, p.h.e. dte. for the period of 180 (one hundred eighty) days. (2nd call) - glassware & other things required for 15 laboratories of alipore south 24 paganas district for 6 monthsample bottle(pbc)(200ml), sterile sample bottle(tarsons)(100ml), aluminium foil 9mt- hindalco/equivalent, tissue paper (medium)- 2x21mt, nitrile gloves(7.6")(100ps), zinc cutter, lighter for mft, lab aprone superior quality,xl size, mask (pollution mask acid fume protected), lab shoe (pair), first aid kit comprises of absorbent cotton (100gms), antiseptic liquid(1no), leucoplast, t-bact/ silverx/similar(10gm),scissors, starile cotton gauge(5 nos), tobe supplied with in covered box, bacteriologychromogenic coliform agar, for simulteneous determination & count of escherichia coli and total coliforms in water samples as per iso 9308-1:2014, 100 gm pack, consumables for bacteriological analysis by mf technique, membrane filter- cellulose nitrate, sterile- individually packed, white membrane, gridded, 47mm dia, 0.45 micron porosity, pack of 100 circles, consumables for bacteriological analysis by mf technique, radiation sterilie plate 15x60mm, 250 nos a pack, total hardnessedta n/50 solution, for total hardness analysis (500ml/pack) 500 ml pack, ammonia buffer solution for total hardness analysis (500ml/pack), phph buffers - 25 c : clear, colourless ph buffer solutions. tested at 25 c and certified by iso 17025 accredited test method. nist/metrological traceable, ph: 4.00 0.01@25 c in 500 ml, ph buffers - 25 c : clear, colourless ph buffer solutions. tested at 25 c and certified by iso 17025 accredited test method. nist/metrological traceable, ph: 7.00 0.01@25 c in 500 ml, ph buffers - 25 c : clear, colourless ph buffer solutions. tested at 25 c and certified by iso 17025 accredited test method. nist/metrological traceable, ph: 10.00 0.01@25 c in 500 ml, conductivity & tdssupply of conductivity/tds standard-25˚c certified by iso 17025 accredited test method, nist traceable 1431us/cm at 25˚c in 500 ml botttles, ironreagent suitable for spectrophotometric analysis of iron in potable water, min range 0.02-3.00 mg/l soluble iron (1000 tests/pack), iron standard solution 1000 mg/l traceable to srm from nist traceable (125 ml/pack), manganesereagent suitable for spectrophotometric analysis of manganese in potable water min range: 0.01-0.7 mg/l of manganese, (250tests/pack), manganese standard solution traceable to srm from nist traceable (125 ml/pack), residual cisupply, delivery demonstration of residual chlorine kit complete with comparator box with continuous colour scale disc for residual chlorine & total chlorine analysis, range/graduation: 0/0.2/0.4/0.6/0.8/1.011.211.4/1.6/1.8/2.012.5/3.0/3.5/4.0, . to besupplied with unbreakable cells, frosted on two sides 13.5 mm path length, volume 10 ml, with lid, easily dispersible dpd tablet for residual chlorine- 530nos & dpd tablet! for total chlorine-30 nos, tablet crusher, carrying box, operating manual. total residual chlorine test should not be less than 530 tests.delivery & demonstration to be made at different places of west bengal as perdirection of engineer- in-charge. make: lovibond|merck, dpd tablet for residual chlorine, easily dispersible, suitable for comparometric determination, pack of 250 tabs, arsenichydrochloric acid min: 36.5%, analytical quality & acs grade, arsenic content: 0.01 ppm max. (500ml/pack), tin (ii) chloride dihydrate analytical quality solubility: 10% solution in dil. hcl should be clear & assay: min. 99.00%, (100gm/pack), zinc granules (arsenic free, as content: 0.00001% max) (500gm/pack), silver diethyldithiocarbamate for arsenic analysis, acs grade assay: 99% min (5 gm/pack), chloroform analytical quality, dry solvent, water content maximum: 0.01% max (500 ml/pack), arsenic standard solution traceable to s

Central Government And Public Sector

CTN :45177465

06 Jun, 2026 NA

Pondicherry - Pondicherry

Tender For corrigendum : supply of kim wipes , molecular grade ethanol 500ml , autoclave indicator tape , sterapid spray bottle 500ml , dmem media 10l , strepto-pencillin antibiotic 6g , dimethyl sulphoxide, dmso, 500ml , sterapid 500ml , ivermectin 12mg , whatman no 1 filter paper , stericup 500ml , filter paper sheets, 46,57cm,10 , 3 4 5 dimethylthiazol 2 y1 2, 5 diphenyl tetrazolium bromide, mtt, 500mg , phosphate buffer solution 500ml , 96 well plate , 24 well tissue culture plate , 6 well tissue culture plate , methanol molecular grade 5l , n hexane molecular grade 5l , ethanol molecular grade 1l , tween 20 100ml , tween 80 100ml , temephos larvicide 5g , bugdorm insect rearing cage, colour white, size w30 x b30xh30 cm, front , clear vinyl, back side and top pannels, nylon netting, floor white vinyl , liquid paraffin 400ml , dressing gauze bandage roll 15cm x 4 mtr , dressing gauze bandge roll 8cm x 4 mtr , inj penidure la 12, benzathine penicillin 12 lakh units , water for injection 10ml , water for injection 5ml , white petroleum 500gms , pinkare lancents for rbs testing , im needle 22g , 1m needle 21g , glucose test strips for accu chek instant.s , glucose test strips for accu chek active , potassium permanganate , clotrimazole soap , normal saline 500ml , savlon 500ml , inj neurobion , inj tt ) /bid number : gem/2026/b/7528953 * /dated: 12-05-2026 & & / bid document 1 / 38

CTN :45384469

16 Jun, 2026 NA

Coimbatore - Tamil Nadu

Tender For purchase of chemicals - purchase of chemicals, diluent for dna extractionsize 500mla diluent used in dna extraction is typically te buffer (10 mm tris-hcl, 1 mm edta, ph ~8.0) or nuclease-free water, used to dissolve and dilute extracted dna. tris maintains a stable ph, while edta chelates divalent cations (e.g., mg ), thereby inhibiting dnase activity and protecting dna from degradation. the diluent must be sterile and free of nucleases to ensure the integrity of dna for downstream applications such as pcr, sequencing, and cloning., luria bertani mediumsize 500gluria bertani medium is a nutrient-rich growth medium commonly used for culturing bacteria such as escherichia coli and agrobacterium tumefaciens. it contains tryptone (10 g/l), yeast extract (5 g/l), and sodium chloride (10 g/l), which provide essential nutrients, vitamins, and osmotic balance for bacterial growth. lb medium supports rapid cell growth and is widely used in molecular biology for cloning, plasmid propagation, and transformation experiments. for solid media, agar (15g/l) is added., chloroform (high analytical reagent grade) size 2.5lchloroform (high analytical reagent grade) is a high-purity organic solvent used in dna extraction, particularly in phenol chloroform methods, to separate proteins and other contaminants from nucleic acids. it enhances phase separation by forming a distinct organic layer, allowing dna to remain in the aqueous phase. due to its toxicity and volatility, it must be handled under a fume hood with proper safety precautions., depcsize 25mldepc is a chemical used to inactivate rnases in water and laboratory solutions, making them suitable for rna work. it modifies histidine residues in proteins, thereby deactivating rnase enzymes that can degrade rna. depc-treated solutions are typically incubated and then autoclaved to remove residual depc, ensuring they are safe for use in downstream applications such as rna extraction and cdna synthesis., tb green master mixsize 200rnxtb green master mix is a ready-to-use reagent used in real-time pcr (qpcr) for dna amplification and detection. it contains tb green dye (a double-stranded dna-binding fluorescent dye), dna polymerase, dntps, mg , and reaction buffer. the dye binds to amplified double-stranded dna and emits fluorescence, allowing real-time monitoring of pcr amplification. it is commonly used for gene expression analysis and quantification of dna., dna loading dyesize 10 inchdna loading dye is a solution added to dna samples before agarose gel electrophoresis. it contains tracking dyes (such as bromophenol blue and xylene cyanol) that allow monitoring of dna migration during the run, and a dense agent (such as glycerol or sucrose) that helps the sample sink into the wells. it may also include edta to protect dna from nuclease degradation., metaloopa metal loop is a reusable laboratory tool made of platinum or nichrome wire, used for transferring and inoculating microorganisms onto culture media. it is sterilized by heating in a flame until red hot before and after use to prevent contamination. it is commonly used in microbiology for streaking plates and handling bacterial cultures.

Central Government / Public Sector

CTN :43420065

30 May, 2026 NA

Bongaigaon - Assam

Tender For bid to ras bid to ras corrigendum : supply of d plus glucose anhydrous ,standard , l glutamic acid , standard , stearic acid,synthesis , hexadecane, ar gr , ph buffer solution 9. 00, standard , ph buffer solution 7. 00, standard , ph buffer solution 4. 01 ,standard , crm for phenol std. , crm f iron std. soln. , crm for pot di chromate , crm, sodium chloride , silica,solution,standard , universal indicator , sodium alginate , calcium chloride,ar gr , bentonite laboratory , base oil 20 cst for icp, 500 ml , blank oil 20 cst for icp, 500 ml , icp multi element std. solution oil , icp multi element std. solution aqueos , icp multi element standards 23 element

State Government

CTN :45274168

01 Jun, 2026 4.29 Lacs

Chhindwara - Madhya Pradesh

Tender For supply of laboratory chemicals for existing, accredited district water testing distt. laboratories of division chhindwara - colour standard potassium chloroplatinate color 500 pt-co units calibration standard 500 hazen crm with traceability certificate from iso/iec 17034:2016 , ph buffer solution traceable to srm from nist standard for ph 4+0.02 at 25 c certified reference standard with traceability certificate from 17034:2016 , ph buffer solution traceable to srm from nist standard for ph 7+0.02 at 25 c certified reference standard with traceability certificate from 17034:2016 , ph buffer solution traceable to srm from nist standard for ph 9+0.02 at 25 c certified reference standard with traceability certificate from 17034:2016 , sodium carbonate (alkalinity) standard solution traceble to srm from nist 1000 mg/l as caco3 crm withiso/iec 17034:2016 tracebility certificate , sodium chloride standard crm with tracebility certificate iso/iec 17034:2016 , calcium standard solution traceble to srm from nist 1000 mg/l as ca certified from iso/iec 17034:2016 tracebility certificate , turbidity 1000ntu calibratation standard formazine certified referance material with iso/iec 17034:2016 tracebility certificate , conductivity standard solution pottasium chloride (nominal 1410 micro-mho/cm i.e 1.41 ms/cm)certified reference material for the measurement of electrolytic conductivity traceable to nistiso/iec 17034:2016, with traceablity cerificate , sodium hydroxide 1 n solution , ammonia solution 25% sp gr 0.91 , reagent grade 1 water conductivity less than 1 micro mhos/cm^2 , test chlo/chlorotex reagent provided with indication of various colout shades range 0.1 to 1 ppm , hydrochloric acid about 35% , spands reagents , zirconium oxychloride reagent , sodium thiosulphate 0.01n solution , pda (phenol di sulphonic acid) solution ar/gr emparta

State Government

CTN :45246819

29 May, 2026 NA

Ranchi - Jharkhand

Tender For request proposal for supplying various chemicals and reagents in 16 nos.of water testing laboratories under dw and sd, jharkhand ranchi zone - turbidity (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) - 400 ntu-standard 500 ml/bottle iso- 17034 certified, potassium chloride (kcl)-500gm/pkt, cone. sulphuric acid-(ar grade)-500ml/bottles, ph buffer solution (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 4.01-(500ml/bottle) iso-17034 certified, ph buffer solution (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 7.00-(500ml/bottle) iso-17034 certified, ph buffer solution (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 9.18.00-(500ml/bottle) iso-17034 certified, sodium carbonate (na2co3) (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 80 grm/pkt iso- 17034 certified, calcium carbonate (caco3) (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 50 grm/pkt iso- 17034 certified, sodium standard solution -1000 ppm (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 500ml/l iso- 17034 certified, potassium standard solution -1000 ppm (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 500ml/l iso- 17034 certified, copper standard solution -1000 ppm (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 500mi/i iso-17034 certified, sodium chloride (nacl) (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 80 grm/pkt iso-17034 certified, potassium chloroplatinate 500ml/bottle (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) iso-17034 certified), nitrate standard solution 1000ppm (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 500ml/bottle iso-17034 certified), iron standard solution 1000ppm (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 500ml/bottle iso-17034 certified), arsenic standard solution 1000ppm (crm must be nist traceable with uncertainty of measurement (uom)validity period at least 2 years with certificate) 500ml/bottle iso-17034 certified), colour standard500 pt-co units (crm/srm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate 500 ml/bottle 17034 certified), sulphate standard 1000ppm ((crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 500ml/bottle iso-17034 certified), mixed standard for icp-oes machine (multi elements that essentially include-al, as, fe, fl, cd, co, pb, mn, ni, z, crm-1000ppm iso-17034 certified-500ml/bottle, fluoride standard solution 1000ppm (crm must be nist traceable with uncertainty of measurement (uom)validity period at least 2 years with certificate) 500ml/bottle iso-17034 certified), total dissolved solids 1000ppm(crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 500ml/bottle iso-17034 certified), conductivity standard solution 1.41 ms/cm (crm must be nist traceable with uncertainty of measurement (uom) validity period at least 2 years with certificate) 50ml/bottle iso-17034 certified), methyl orange solution 125 ml/bottle, bromocresol green indicator 125 ml/bottle, phenolphthalein green indicator 125 ml/bottle, sodium hydroxide 500 gm/pkt, edta salt 500

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