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Laboratory Analysis of Water
Nepal
เข้าร่วมเมื่อ 25 ส.ค. 2017
This channel includes the step details for the preparation of reagents to test various water quality parameters and the laboratory analysis.
Phenanthroline Method - General Theory
In this video we know about general theory of Phenanthroline Method for the measurement of Iron in water.
For sponsership: pcs.sms@gmail.com
For Preparation of Necessary Reagents please watch: th-cam.com/video/ihb2p3arTj8/w-d-xo.html
For preparation of sample & calibration standards please watch: th-cam.com/video/QoR2X2Jrc8c/w-d-xo.html
For Calculation & Measurement please watch: th-cam.com/video/ymdoL7uSKu4/w-d-xo.html
For role of reagents used please watch: th-cam.com/video/zn9bY9mJTjQ/w-d-xo.html
#chemistry # Phenanthroline method # Iron measurement in water
For sponsership: pcs.sms@gmail.com
For Preparation of Necessary Reagents please watch: th-cam.com/video/ihb2p3arTj8/w-d-xo.html
For preparation of sample & calibration standards please watch: th-cam.com/video/QoR2X2Jrc8c/w-d-xo.html
For Calculation & Measurement please watch: th-cam.com/video/ymdoL7uSKu4/w-d-xo.html
For role of reagents used please watch: th-cam.com/video/zn9bY9mJTjQ/w-d-xo.html
#chemistry # Phenanthroline method # Iron measurement in water
มุมมอง: 163
วีดีโอ
Sources of Iron in water
มุมมอง 1002 หลายเดือนก่อน
In this video we know about sources of Iron in water. For sponsorship: pcs.sms@gmail.com For Preparation of Necessary Reagents please watch: th-cam.com/video/ihb2p3arTj8/w-d-xo.html For preparation of sample & calibration standards please watch: th-cam.com/video/QoR2X2Jrc8c/w-d-xo.html For Calculation & Measurement please watch: th-cam.com/video/ymdoL7uSKu4/w-d-xo.html For role of reagents used...
Phenanthroline Method: Role of Reagents used
มุมมอง 1592 หลายเดือนก่อน
In this video we know about role of reagents used in Phenathroline Method for the measurement of Iron in water. For sponsership: pcs.sms@gmail.com For Preparation of Necessary Reagents please watch: th-cam.com/video/ihb2p3arTj8/w-d-xo.html For preparation of sample & calibration standards please watch: th-cam.com/video/QoR2X2Jrc8c/w-d-xo.html For Calculation & Measurement please watch: th-cam.c...
Preparation of Fehlings solution
มุมมอง 1152 หลายเดือนก่อน
In this video we prepare Fehlings solutions. For sponsorship: pcs.sms@gmail.com For preparation of 1N Acetic acid solution please watch: th-cam.com/video/2CPuDoIUtbM/w-d-xo.html For preparation of (1 1) Sulfuric acid please watch: th-cam.com/video/6TPXPEFaXAM/w-d-xo.html For preparation of 0.0141 N Silver nitrate solution please watch: th-cam.com/video/S4MXbnetEjk/w-d-xo.html For preparation of...
Thymol blue indicator (0.04% w/v) solution - Preparation
มุมมอง 1982 หลายเดือนก่อน
This video contains Thymol blue indicator (0.04% w/v) solution For m- Cresol purple indicator solution (0.04% w/v) please watch: th-cam.com/video/dHiHJTiAbKU/w-d-xo.html For Bromophenol blue indicator solution (0.1% w/v aqueous) please watch: th-cam.com/video/CmKK1kV07dQ/w-d-xo.html For Bromocresol green indicator solution 0.04% (w/v) please watch: th-cam.com/video/SMcmJdXJQFA/w-d-xo.html For M...
m- Cresol purple indicator solution (0.04% w/v) - Preparation
มุมมอง 1112 หลายเดือนก่อน
This video contains preparation of 0.04% w/v m- Cresol purple indicator solution For Bromophenol blue indicator solution (0.1% w/v aqueous) please watch: th-cam.com/video/CmKK1kV07dQ/w-d-xo.html For Bromocresol green indicator solution 0.04% (w/v) please watch: th-cam.com/video/SMcmJdXJQFA/w-d-xo.html For Murexide indicator solution 0.15% (w/w) please watch: th-cam.com/video/r6f11-pkJXc/w-d-xo....
Bromophenol blue indicator solution (0.1% w/v aqueous) - Preparation
มุมมอง 2142 หลายเดือนก่อน
This video contains preparation of 0.1% (w/v) aqueous Bromophenol blue indicator solution For m- Cresol purple indicator solution (0.04% w/v) please watch: th-cam.com/video/dHiHJTiAbKU/w-d-xo.html For Bromocresol green indicator solution 0.04% (w/v) please watch: th-cam.com/video/SMcmJdXJQFA/w-d-xo.html For Murexide indicator solution 0.15% (w/w) please watch: th-cam.com/video/r6f11-pkJXc/w-d-x...
Phosphate buffer solution Preparation (pH range 4.8 to 8.0 )
มุมมอง 1432 หลายเดือนก่อน
This video contains step details for the preparation of Phosphate buffer solution of pH range 4.8 to 8.0 For Borate Buffer please watch: th-cam.com/video/gvytRHFs9io/w-d-xo.html For Ammonium Buffer please watch: th-cam.com/video/t69obSrIiD4/w-d-xo.html For Acetate Buffer please watch: th-cam.com/video/UdhuRyfTHxE/w-d-xo.html
Borate buffer solution preparation (pH range of 9.2 to 11.0 )
มุมมอง 2102 หลายเดือนก่อน
This video contains preparation of Borate buffer solution of pH range 9.2 to 11.0 For Phosphate Buffer please watch: th-cam.com/video/AeZuooRyjFM/w-d-xo.html For Ammonium Buffer please watch: th-cam.com/video/t69obSrIiD4/w-d-xo.html For Acetate Buffer please watch: th-cam.com/video/UdhuRyfTHxE/w-d-xo.html
Measuring Nitrate in Water: UV Screening Method- Spectrophotometric Measurement of Absorbances
มุมมอง 4662 หลายเดือนก่อน
This video contains step details for the measurement of absorbance's of Standards, Sample & Blank to determine Nitrate in Drinking Water using spectrophotometer by UV-Screening Method For reagent preparation please watch: th-cam.com/video/KjNOFBc6_t8/w-d-xo.html For spectrophotometer general operation please watch: th-cam.com/video/xL0YC3gjisg/w-d-xo.html For parameter setting on spectrophotome...
Ammonium buffer solution preparation (pH range 3.8 to 5.8)
มุมมอง 2.3K11 หลายเดือนก่อน
This video contains preparation of ammonium buffer solution of pH range 3.8 to 5.8. For Phosphate Buffer please watch: th-cam.com/video/AeZuooRyjFM/w-d-xo.html For Borate Buffer please watch: th-cam.com/video/gvytRHFs9io/w-d-xo.html For Acetate Buffer please watch: th-cam.com/video/UdhuRyfTHxE/w-d-xo.html
Acetate buffer solution preparation (pH range of 3.6 to 5.6)
มุมมอง 32K2 ปีที่แล้ว
This video contains preparation of acetate buffer solution of pH range of 3.6 to 5.6. For Phosphate Buffer please watch: th-cam.com/video/AeZuooRyjFM/w-d-xo.html For Borate Buffer please watch: th-cam.com/video/gvytRHFs9io/w-d-xo.html For Ammonium Buffer please watch: th-cam.com/video/t69obSrIiD4/w-d-xo.html
0.05M Iodine solution: Preparation
มุมมอง 8K2 ปีที่แล้ว
This video contains preparation of 0.05M Iodine solution For preparation of Iodine-Potassium iodide solution for starch test please watch: th-cam.com/video/2lzdn0dZuvg/w-d-xo.html For preparation of Tincture of Iodine please watch: th-cam.com/video/tmebVXrmylQ/w-d-xo.html
Iodine-Potassium iodide solution for starch test - Preparation
มุมมอง 21K2 ปีที่แล้ว
This video contains preparation of Iodine-Potassium iodide solution for starch test For preparation of 0.05M Iodine solution please watch: th-cam.com/video/lZXIbab4vZk/w-d-xo.html For preparation of Tincture of Iodine please watch: th-cam.com/video/tmebVXrmylQ/w-d-xo.html
Tincture of Iodine -Preparation
มุมมอง 10K2 ปีที่แล้ว
This video contains preparation of Tincture of Iodine For preparation of 0.05M Iodine solution please watch: th-cam.com/video/lZXIbab4vZk/w-d-xo.html For preparation of Iodine-Potassium iodide solution for starch test please watch: th-cam.com/video/2lzdn0dZuvg/w-d-xo.html
Bromocresol green indicator solution 0.04% (w/v) - Preparation
มุมมอง 5K2 ปีที่แล้ว
Bromocresol green indicator solution 0.04% (w/v) - Preparation
Murexide indicator solution 0.15% (w/w) - Preparation
มุมมอง 2.6K2 ปีที่แล้ว
Murexide indicator solution 0.15% (w/w) - Preparation
Eriochrome black T (EBT) Indicator solution 0.5% (w/w) - Preparation
มุมมอง 6K2 ปีที่แล้ว
Eriochrome black T (EBT) Indicator solution 0.5% (w/w) - Preparation
How to use spectrophotometer? Step by step practical. Parameters setting on photometric measures
มุมมอง 1.1K2 ปีที่แล้ว
How to use spectrophotometer? Step by step practical. Parameters setting on photometric measures
Measuring Turbidity of water: Instrument calibration & measurement (Turbidimeter Plus of Palintest)
มุมมอง 1.1K2 ปีที่แล้ว
Measuring Turbidity of water: Instrument calibration & measurement (Turbidimeter Plus of Palintest)
How does Spectrophotometer work? Step by step practical. General operating procedure
มุมมอง 1.5K2 ปีที่แล้ว
How does Spectrophotometer work? Step by step practical. General operating procedure
Methyl orange indicator solution 0.04% (w/v) - Preparation
มุมมอง 9K2 ปีที่แล้ว
Methyl orange indicator solution 0.04% (w/v) - Preparation
Ferroin indicator solution - Preparation
มุมมอง 3.1K2 ปีที่แล้ว
Ferroin indicator solution - Preparation
Measuring pH in water: calibration & measurement by pen type pH Meter,Jenco Vision Plus, pH 360
มุมมอง 9392 ปีที่แล้ว
Measuring pH in water: calibration & measurement by pen type pH Meter,Jenco Vision Plus, pH 360
How to measure pH in water? : calibration & measurement (Pen type pH meter of Palintest/ Wagtech)
มุมมอง 1.6K2 ปีที่แล้ว
How to measure pH in water? : calibration & measurement (Pen type pH meter of Palintest/ Wagtech)
Preparation of stock Manganese solution: measurement of Manganese in water: Persulfate Method
มุมมอง 2.3K2 ปีที่แล้ว
Preparation of stock Manganese solution: measurement of Manganese in water: Persulfate Method
Strength of Potassium permanganate solution: Calculation - Persulfate Method - Manganese in water
มุมมอง 1.3K2 ปีที่แล้ว
Strength of Potassium permanganate solution: Calculation - Persulfate Method - Manganese in water
Standardization of Potassium Permanganate solution with oxalic acid
มุมมอง 2.1K2 ปีที่แล้ว
Standardization of Potassium Permanganate solution with oxalic acid
why does the solution look so dark? isnt 0.05M supposed to look more diluted?
how can i check it , density ?, PH ?, wich value ??
Why we have taken 3.82 g is there calculation?
What will be its normality
I would like to measuring size of red dosing spoon & green dosing spoon.
dissolve 25 gm not 12.5 because you prepare 500 ml standard method say: Dissolve 50 g K2CrO4 in a little distilled water. Add AgNO3 solution until adefinite red precipitate is formed. Let stand 12 h, filter, and dilute to 1 L with distilled water.
Sir how to dispose chemical reagent in laboratory Basin me to daal nhi skate phir kaise kare CaO ka kon sa method h
good! Can you tell me how to make 0.5 M of sodium acetate buffer ph 4
❤ your video is very helpful One request can u have how to analyse assay of antimony triacetate with titration method Pls upload Thanks
As soon as possible
I'm Moravian and I assure you ingestion of 95% ethanol causes mostly good vibes, excessive singing and the idea of ingesting more ethanol.
Thank you so much sir. We are anticipating the video on the calculation part, sir.
Hi, may i know if i can use an UVC sterilizing lamp in a water storage tank to eliminate germs and pathogen for use in an aquarium later? Someone was saying UVC lamp on tap water might produce nitrate and nitrite.. Or what are the conditions to allow the production? Thanks.
www.mdpi.com/2076-3298/5/11/117
Please how the change from 50mL to 100mL at the final stage. Please clarify
excuse me what is 4.55
do i heat solid phenol to liquify it on hot plate without any addition to it?
You can but be safe from vapour of phenol
do this at low temperature and well ventilated area, wear mask.
Sir I couldn't get linear regression for 10 ppm to 50 ppm. It seems constant. what would be the measure of 200 ppm for 10,20,30,40&50 ppm
Sir kindly help me
you make high concentration calibration standard. At high concnentration small mistake may loss iron content during rinsing, pipetting. making final volume. Do very carefully. 200 ppm iron is very high amount. If possible if available follow another method. Do very sincerly you get good result from this method also.
Thank you!! What about the equation in APHA regarding this method; is it true to get the conc. Through the standard curve only?
Yes, it is. Linear comparison is one of the best tool.
Excuse me, I don't have SPANDS and Sodium meta Asenic in lab at my university. What chemicals can I use instead? 🙇🏻♂️🙏🏻
Para cuántos gramos del reactivo es la cuchara me ayudan
Stock solution doesn't give pinl color it is almost orange to brown!
I analyzed a sample of water from a natural source according to your method. but calculated with excel It came out and the concentration value was negative. What does it mean?
Please say absorbance of sample and blank you measured
@@Laboratoryanalysisofwater blank is 0.005 A, sample is 0.014 A
and i have graph is y=0.1802x+0.0494
Your sample contains very low amount of iron. Negative value indicates iron is like zero value. Write amount of iron is < 0.001 ppm in report. Negative value means very very low iron present. Please Don't confuse.
Thank you very much for the great clip and the answers and advice. I did a lab with her. We are students of the Faculty of Science. We received your method as an example for analyzing water samples. Thank you from our hearts, and we wish you good health forever. You are our teacher.
He weighed 1g and in video you are telling it is 0.1g why
Kindly make new video on calculation part, sir.
Sir mine phep is showing 1666 and then ph 1 when i turn it on what is the problem plz reply sir
please dip the electrode of ph meter about 2 days in pH 4 solution or tap water and clean electrode gently with brush. May be work. If no please contact your supplier.
Thank you, Sir.
You are very welcome
Sir, can you please help me to find Chromium content in soil ?
How much time does it takes to get stablised reading ??
Please send pdf
Waste of time Victor Krum. Too many steps. Phenolphthalein works at 8.5 pH just fine so EBT is cumbersome and unnecessary. Phenolphthalein is a common reagent in every lab and doesn’t need prep work. EDTA is colourless or light yellow anyway. So pink colour change in phenolphthalein can be seen easily. Best guess is that EBT is used for coloured compounds
How you add water into acid
How long does it take to completely dissolve?
You are Amazing dear sir...thank you so much for your kind videos🙏🙏🙏
It's my pleasure
Still hoping for the next video 😢😢 thanks for these 2 video nonetheless
For Nitrate take absorbance at 220 nm and 275 nm separately. Please take reference of following: th-cam.com/video/ymdoL7uSKu4/w-d-xo.html&pp=ygUcbWVhc3VyZW1lbnQgb2YgSXJvbiBpbiB3YXRlcg%3D%3D
Where is the 3rd part of this (spectrophotometeric determination) ??
Please take reference of following: th-cam.com/video/ymdoL7uSKu4/w-d-xo.html&pp=ygUcbWVhc3VyZW1lbnQgb2YgSXJvbiBpbiB3YXRlcg%3D%3D
Hello, I would like to ask if to make 10,000 ppm solution NH4Cl we just multiply 3.189 grams 10 times? Thank
Yes
Hello brother, please explain what kind of solution DIW in the Bottle
DIW is Deionized Water
where is the following video for spectrophotometer calculation?
Please take reference of following: th-cam.com/video/ymdoL7uSKu4/w-d-xo.html&pp=ygUcbWVhc3VyZW1lbnQgb2YgSXJvbiBpbiB3YXRlcg%3D%3D
Which nanometer used for od reading
640 nm
please share remaining part?
Molar amount of this buffer solution?
Sir 200 ppm kaise nikalenge
Sir this procedure is followed which reference method
APHA
how can i express my thank you. thank you a lot
You're most welcome
WHERE IS THE NEXT VIDEO SIR
Please take reference of following: th-cam.com/video/ymdoL7uSKu4/w-d-xo.html&pp=ygUcbWVhc3VyZW1lbnQgb2YgSXJvbiBpbiB3YXRlcg%3D%3D
Where is absolute alcohol. We must add 5 mL absolute alcohol
Turbidity of water should be 1.54 ?
Yes
Hello sir.. I have one doubt.. how do you calculate and consider this is the concurrent value exactly? Is it mean value ?
tres bien
Sir Koh Buffer solution prepare krna h lime stone me caco3 check krne k liye . To kaise prepare kru Koh Buffer solution???
Could you please tell me the reference for this test? I need procedure
APHA