For our customers - data accumulated by “Expert” of analytical instruments

titration moisture

FoodDrugs and MedicinesEnvironmentPLATING & ETCHING SOLUTIONSODA PULP INDUSTRYLubricant petroleum productsResins, Oils and Fats, Rubber,Adhesives, Paints

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Food
A1 Salt content in soy sauce

The determination method of salt content in soy sauce is described as “Measurement of Salt Content” in JAS (Japanese Agriculture Standard).・・・

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A2 Successive measurement of acid and salt in dressing

An example of successive determination of concentration of acid and salt chloride in dressing is introduced here. Acid and salt are determined as acetic acid and sodium chloride.・・・

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A5 Continuous measurement of citric acid and vitamin C in soft drink

Example of sequential titration for vitamin C and citric acid in a soft drink is introduced here.・・・

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A6 Continuous measurement of acid (citric acid) and amino nitrogen in grapefruit juice

Successive measurement of acid (citric acid) and amino nitrogen in grapefruit juice and its titration process will be introduced.・・・

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A7 Acid value of cooking oil

Acid value of oils and fats is defined as “amount (mg) of potassium hydroxide required to neutralize fatty acid in 1 g of sample”・・・

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A8 Iodine value measurement for cooking oil

Fatty acid in cooking oil, for example, oleic acid and linoleic acid absorb one or two of iodine molecules. Other kinds of cooking oils also absorb specific amount of iodine. ・・・

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A9 Saponification value of cooking oil

When potassium hydroxide ethanolic solution is added to fats and oils and heated, glyceride produces fatty acid potassium salt and glycerin by saponification・・・

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A10 Peroxide value measurement for cooking oil

Degraded fats and oils include peroxide chemical species. Therefore, determination of peroxide value is an effective analytical method to know the index of fat and oil degradation・・・

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A11 Acid value measurement of orange juice

An example for acid value measurement of orange juice performed by neutralization titration is introduced here.・・・

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A12 Measurement of vitamin C in soft drink with indophenol method

Many soft drinks contain vitamin C (ascorbic acid). Vitamin C is included as not only nutrient factor but also an antioxidant for drinks・・・

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Drugs and Medicines
B2 Determination of sodium acetate with perchloric acid titration

Sodium acetate is widely used in chemical and medical industry (E.g. Buffer, Antifreezing agent, Alkalizing supplements, Dye chemical, Hydragogue). Determination method of sodium・・・

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B7 Available iodine in mouthwash (Povidone-iodine)

Determination method of available iodine in mouthwash containing povidone-iodine which is described in Japanese Pharmacopoeia is introduced here.・・・

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B15 Sodium chloride in peritoneal dialysis solution

This report introduces an example of measurement for sodium chloride in peritoneal dialysis solution with precipitation titration. The sample is acidified by・・・

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B19 Purity determination for papaverine hydrochloride by perchloric aid titration

Determination for papaverine hydrochloride is defined in Japanese Pharmacopoeia. Papaverine hydrochloride is used for improvement of vasodilatation and symptoms on gastritis・・・

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B20 Standardization of perchloric acid in acetic acid with potassium hydrogen phthalate

Measurement method with perchloric acid - acetic acid standard solution is defined as a quantitative determination method for each drug and medicine in・・・

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B21 Quantitative determination of sodium citrate

Sodium citrate is used as anticaking agent for blood in pharmaceutical field. Quantitative determination method for sodium citrate is stipulated in Japanese Pharmacopoeia.・・・

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Environment
D1 Quantitative determination of chloride ions in tap water

Quantitative determination for chloride ions in tap water is stipulated in Standard Methods for the Examination of Water, and Standard Methods of Analysis for Hygienic Chemists, etc.・・・

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D2 Total hardness in tap water

Hardness in water is total amount of calcium and magnesium ion in water converted to mg/L of comparable calcium carbonate. “Hardness” has the following types:・・・

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D3 Calcium hardness in tap water

There are determination methods for hardness in tap water as follows: (1) Total hardness defined as the sum of calcium and magnesium ion converted・・・

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D4 Determination of residual chlorine in tap water

Tap water chlorinated from lake water and river water contains residual chlorine. The residual chlorine is sometimes called available chlorine, which is composed of free residual ・・・

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D5 Determination of alkalinity in bottled water

Natural water contains alkaline components such as hydroxides and carbonates. Such water indicates alkaline pH, the alkalinity is used as an index・・・

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PLATING & ETCHING SOLUTION
E4 Quantitative determination of nickel chloride in nickel plating solution

The control and analysis of nickel plating solution are very important process for the product quality. Analytical components of the general nickel plating solution are・・・

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E7 Determination of Tin (Sn2+) in solder plating solution

Tin (Sn2+) in solder plating solution is determined by redox titration with iodine. Solder plating solution contains Sn (II) ions, Sn (IV) ions, and acids etc. ・・・

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E9 Determination of hydrogen peroxide and sulfuric acid in etching solution

Sulfuric acid and hydrogen peroxide are main components of the etching solution which is used for cleaning the copper surface (soft etching) or half etching.・・・

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E10 Quantitative determination of total nickel (Ni2+) in nickel plating solution

The control and analysis of nickel plating solution is very important process for the product quality. Analytical components of the general nickel plating solution are・・・

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SODA PULP INDUSTRY
H1 Purity determination of sodium hydroxide

Sodium hydroxide is one of the most elemental reagent in chemical industrial reagents. Its production amount is large and it is used in a broad range of fields.・・・

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Lubricant petroleum products
L1 Acid number in Lubricating oil

The acid number of lubricant oil is one of the important index for judging its quality.Measurement of acid number is defined in several standard test methods.・・・

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L2 Base number in lubricating oil (Hydrochloric acid method)

The base number of lubricant oil is one of the important index for judging its quality.Measurement of base number is defined in several standard test methods. ・・・

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L3 Base number in lubricating oil (Perchloric acid method)

The base number of lubricant oil is one of the important index for judging its quality.Measurement of base number is defined in several standard test methods. ・・・

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L5 Acid number in Refrigerating machine oil

Refrigerating machine oil is used in a state mixed with refrigerant such as hydrofluorocarbon. The official standard of refrigerant (e.g. JIS K 2211) specifies the acid number test ・・・

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L11 Base number in Lubricant oil (Perchloric acid / Back-titration)

The base number of lubricant oil is one of the important index for judging its quality.Measurement of base number is defined in several standard test methods. ・・・

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Resins, Oils and Fats, Rubber,Adhesives, Paints
M9 Determination of isocyanate (NCO) content in adhesives

Synthetic adhesives like hydrophilic macromolecule –Isocyanate type wood adhesives are consisted of base compound and cross-linker; the principal components of base compound ・・・

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