Determination of moisture

Analyte Sample type Calibration method Remarks References [Pg.383]

Ascorbic acid Tablet MLR Non-destructive quantitation method. Errors (SEP) less than 0.7%. Method validated using ICH-adapted guidelines 129 [Pg.383]

Acetylsalicylic acid Tablet PLS Non-destructive quantitation method in three different formulations. Reflectance and transmittance modes compared. Errors less than 3% 130 [Pg.383]

Acetylsalicylic acid Tablet ANN Errors less than 2.5% 132 [Pg.383]

This is essentially a Dean and Stark tube (employed for determinations of moisture) but uncalibrated the capacity of this receiver is 7-5-10 ml. A tube calibrated in 0 -1 ml. may, of course, be employed, but for large classes the cheaper uncalibrated tube possesses obvious advantages. [Pg.312]

It appears then that the establishment of practicable and accurate reference methods presents one of the major problems in the determination of moisture in foods. The present paper summarizes some of the important factors that govern the accuracy of moisture determinations in general, and reviews some of the recently published attempts to develop methods that might serve as useful reference standards for dehydrated foods, and especially for dehydrated vegetables and fruits. [Pg.38]

General Considerations in Determination of Moisture in Dehydrated Foods... [Pg.38]

Figure 8. Determination of Moisture in Corn by Distillation Methods (28)...

The methods used for the determination of moisture in dehydrated foods have been divided into two classes, the direct and the indirect. The indirect methods, such as the electrical ones, must be calibrated in terms of the direct methods. [Pg.53]

The Determination of Moisture in Aluminised Explosives , Bristol Research Report No 150 (Feb 1945) 39) Anon, The Boostering of... [Pg.160]

A. LaBrot P.J. Martin, Reflux Times for the Karl Fischer Determination of Moisture in Some Propellants , Badger Ord Works, Baraboo, Wisconsin, TM 514-RM-56.3 (1956) 24) Dunkle s... [Pg.171]

Methods of analysis for the determination of active matter and minor impurities in AOS are described in ASTM D3673-89. Included are methods for determination of moisture, sulfate, chloride, alkalinity, pH, color, and neutral oil. Some alternative instrumental methods are described briefly below. [Pg.451]

Pypee JW (1985) The determination of moisture in solids - a selected review. Anal Chim Acta 170 159-175. [Pg.47]

Russell A.P., Fletcher K.S., Optical sensor for the determination of moisture, Anal. Chim. Acta 1985 170 209. [Pg.40]

Thermogravimetry (TG) is a measure of the thermally induced weight loss of a material as a function of the applied temperature [39], Thermogravimetric analysis is restricted to studies involving either a mass gain or loss, and it is most commonly used to study desolvation processes and compound decomposition. Thermogravimetric analysis is a very useful method for the quantitative determination of the total volatile content of a solid, and it can be used as an adjunct to Karl Fischer titrations for the determination of moisture. [Pg.243]

Table 7.3 Data obtained from a proficiency testing round for the determination of moisture in...

The data shown in Table 7.3 are from one round of a proficiency testing scheme for the determination of moisture in barley. There are a number of different... [Pg.197]

Chapter 7 Response 7.1 (a) The mean, standard deviation, robust average (median) and robust standard deviation (MADe) are shown in Table SAQ 7.1. Table SAQ 7.1 Data from a proficiency testing round for the determination of moisture in barley ... [Pg.272]

Schmidt, S.J. 1991. Determination of moisture content by pulsed nuclear magnetic resonance spectroscopy. In Water Relationships in Foods (H. Levine and L. Slade, eds), pp. 599-613. Plenum Press, New York. [Pg.98]

Method 7.1. Determination of Moisture in Air Dry Soil on a Mass Basis... [Pg.169]

The Karl Fischer titration is a generally accepted method for the determination of moisture in a sample [2],... [Pg.803]

ISO 585 1990 Plastics - Unplasticized cellulose acetate - Determination of moisture content ISO 1061 1990 Plastics - Unplasticized cellulose acetate - Determination of free acidity ISO 1598 1990 Plastics - Cellulose acetate - Determination of insoluble particles ISO 1599 1990 Plastics - Cellulose acetate - Determination of viscosity loss on moulding ISO 1600 1990 Plastics - Cellulose acetate - Determination of light absorption on moulded specimens produced using different periods of heating ISO 1875 1982 Plastics - Plasticized cellulose acetate - Determination of matter extractable by diethyl ether... [Pg.533]

ISO 2558 1974 Textile glass chopped-strand mats for reinforcement of plastics -Determination of time of dissolution of the binder in styrene ISO 3344 1997 Reinforcement products - Determination of moisture content... [Pg.788]

K.H. Norris and J.R. Hart, Direct spectrophotometric determination of moisture content of grains and seeds, in Proceedings 1963 International Symposium on Humidity and Moisture in Liquids and Solids, A. Wexler (ed.), vol 4 Reinhold, New York, 1965 p. 19. [Pg.434]

O. Bemtsson, G. Zackrisson and G. Ostling, Determination of moisture in hard gelatin capsules using near-infrared spectroscopy applications to at-line process control of pharmaceutics, J. Pharm. Biomed. Anal, 15, 895-900 (1997). [Pg.460]

The earliest applications for quantitative analysis of liquid samples and solid preparations entailed sample dissolution in an appropriate solvent. A number of moisture determinations in APIs and pharmaceutical preparations based on both reflectance and transmission measurements have been reported. Their results are comparable to those of the KF method. The high sensitivity provided by the NIR technique has fostered its use in the determination of moisture in freeze-dried pharmaceuticals. ° The noninvasive nature of NIR has been exploited in determination of moisture in sealed glass vials. " " ... [Pg.480]

J.A. Jones, I.R. Last, B.R MacDonald and K.A. Prebble, Development and transferability of near-infrared methods for determination of moisture in a freeze-dried injection product, J. Pharm. Biomed. Anal. 11, 1227-1231 (1993). [Pg.490]

Near infra-red reflectance spectroscopy was first used by Norris and Hart [54] for the determination of moisture, oil and fat in cereal products. A number of instrument companies, notably Technicon, have developed commercial instruments. The instrument replaces a series of chemical procedures by a signal measurement in each of six infra-red regions and reference to a suitable computer calibration. Such an approach offers... [Pg.136]

Hughes, M. (1969) Determination of moisture and oil in the seed of winter rape (Brassica napus). Parts I II. Journal of the Science of Food and Agriculture 20, 741-747. [Pg.213]

Figure 5.20 — Reversible flow-through optical waveguide gas sensors using a reagent immobilized on the inner walls of the tube for the determination of moisture (water) (A) and sulphur dioxide (B). For details, see text. (Reproduced from [64] and [65] with permission of the American Chemical Society and Elsevier Science Publishers, respectively).

Determination of moisture content is described in Section 8, ANALYTICAL PROCEDURES, ETC", where are listed numerous US Military Specifications. These specs contain also a brief description of required physical tests. Before describing the specification requirement tests, a resume is given of "Measuring Techniques" of fuze explosive components, as discussed in NOLTR 1111(1952), pp 9-1 to 9-56 (Ref 11) The mea surement of fuze component performance consists mainly of a determination of (a) the input characteristics, and (b) the output characteristics... [Pg.1078]

Karl Fischer Method for Determination of Moisture. See under Dynamites in Vol 5, p D1622-L and under Ethanol in Vol 6, p E158-R... [Pg.539]

For determination of Moisture in single-base propellants, three methods can be used ... [Pg.42]

This method is used for the determination of moisture content of small grain or finely divided cannon propellant. It is based on distillation of the moisture with a solvent that... [Pg.44]

Dry the sieve and count and examine any particles remaining on the sieve. Brush any particles retained on No 60 sieve onto No 40 sieve. Note if the particles are grit as indicated by their lack of uniformity land a scratching noise when pressing and rubbing the material on a smooth glass slide with.a. smooth steel spatula. Report die number of particles on No 60 sieve and on No 40 sieve 4.4-3.1 Determination of Moisture Use Karl Fischer Method, described in MIL-STD-650 as Method 101.4, with methanol as the special solvent. A detailed description... [Pg.273]

Determination of Moisture by Alternate Method. This includes moisture and volatiles. For rapid determination use the "oven method" described in MIL-STD-650 as Method 101.5 ... [Pg.273]

Determination of Moisture in NG by Karl Fischer Reagent. Place a 5—lOg sample of the NG into a fared narrow-necked stopperable flask and retare. Titrate directly with standardized Karl Fischer Reagent until a brown color remains for 30 sec, or use a potentiometric endpoint. Then,... [Pg.746]

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