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Trace-level determinations for the presence of formaldehyde in both bulk and dosage form pharmaceuticals were developed using three innovative strategies. One system adapted the chromotropic acid spot test for formaldehyde. This was accomplished spectrophotometrically over a linear detection range against authentic control samples. The other two chromatographic approaches necessitated rapid derivatization. One derivative was its corresponding oxime, formaldoxime, which was resolved on a gas chromatographic porous polymer column and sensed by a nitrogen-specific detector. The other derivative, sodium formate, was detected and quantified on an ion chromatograph using an anion-exchange column and a conductivity detector. The chromotropic acid technique was sensitive but not specific for formaldehyde. The chromatographic techniques required a high degree of water solubility. All were subject to interferences that could preclude their use for a particular application. None of the tested samples, which included a penicillin analogue, a pharmaceutical dosage from additive, a vitamin, and biological proteins, showed the presence of formaldehyde at trace levels.
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Trace-level determinations for the presence of formaldehyde in both bulk and dosage form pharmaceuticals were developed using three innovative strategies. One system adapted the chromotropic acid spot test for formaldehyde. This was accomplished spectrophotometrically over a linear detection range against authentic control samples. The other two chromatographic approaches necessitated rapid derivatization. One derivative was its corresponding oxime, formaldoxime, which was resolved on a gas chromatographic porous polymer column and sensed by a nitrogen-specific detector. The other derivative, sodium formate, was detected and quantified on an ion chromatograph using an anion-exchange column and a conductivity detector. The chromotropic acid technique was sensitive but not specific for formaldehyde. The chromatographic techniques required a high degree of water solubility. All were subject to interferences that could preclude their use for a particular application. None of the tested samples, which included a penicillin analogue, a pharmaceutical dosage form additive, a vitamin, and biological proteins, showed the presence of formaldehyde at trace levels.
Several factors challenge trace mineral supplementation. These factors include the mineral source, physical properties, accurate weigh out of trace minerals within the mix, proper mixing and the chemical and positional stability of the trace mineral within a premix or complete feed mixture. Achieving a precise approach to trace mineral supplementation requires special attention to how different factors affect the actual level of trace mineral delivered to the animal.
Significant variances in different forms of trace minerals can impact formulation and adversely affect how much of an individual trace mineral is added to a mix. Table 1 clearly shows how the addition level of an individual trace mineral can vary within a complete feed formulated to deliver 100 ppm of zinc. It is also important to consider the very small amount that individual trace minerals represent within the overall volume of a complete feed mix. Using the example above, the actual amount of trace mineral added per ton of complete feed would vary from a low of .14 kgs to a high of .83 kgs (.014-.083% of the total mix) based on the trace mineral form selected. Given the small volume of trace minerals represent in the final feed, care must be taken to ensure that required trace minerals are being properly selected and accurately weighed within the premix/complete feed.
It is well known that care must be taken when adding micro ingredients to a premix or complete feed to ensure uniform mixing. The timing of when trace minerals are added to the mixing sequence and/or the total mixing time can adversely affect uniform distribution of essential trace minerals within the final feed. Compounding this challenge is the lack of precision typically offered by laboratory analysis which can vary by 10-20% depending on the trace metal being measured. When sampling trace metals within a mix, a good practice is to avoid the first and last 10-15% of product being discharged from the mixer. Samples should be pulled from the middle portion of the mix and analysed using wet chemistry protocols. To consistently achieve highly precise mixing, it is best to establish a defined protocol clearly highlighting trace mineral selection and weighing criteria along with when the trace mineral(s) are sequenced within the mixing process and mixing time.
Trace minerals are chemical compounds that can vary in their solubility and reactivity within the premix/complete feed. Typically, inorganic trace mineral sources (sulphates, chlorides, etc.) have very high solubility/reactivity compared to hydroxy trace minerals (IntelliBond), which have very low solubility/reactivity in the feed and in the animal. High levels of reactivity can have a negative impact on the stability and efficacy of many essential nutrients (Figure 2) added to the mix such as vitamins, fat, enzymes, probiotics, trace metals, binders, etc. Solubility concerns become even more important if feeds are being pelleted, given the injection of moisture via steam into feed during processing. Such moisture-related processes can increase the reactivity of inorganic trace mineral forms, resulting in more essential nutrient destruction.
All IntelliOpt blends are formulated based on the knowledge and insights of leading industry groups and academic professionals with a keen eye on ensuring optimised animal productivity and well-being. Individual blends are manufactured by Selko to ensure that all critical nutrients are present in the right form and amount to support trace metal availability to animals.
The selection of a trace mineral source is an important decision to support productivity and health. However, knowing how that source was added and mixed, along with its impact on other essential nutrients in the feed, are equally important parts of an effective precision nutrition strategy. Ultimately, the best trace mineral source is of little value if it is not consistently delivered in the correct amount and form required for peak animal performance and health.
Trouw Nutrition, a Nutreco company, is a global leader in innovative feed specialties, premixes and nutritional services for the animal nutrition industry. It provides products, models and services to boost productivity and support animal health through all life stages. With unique, species-specific solutions, Trouw Nutrition has been meeting the needs of farmers and home-mixers, feed producers, integrators and distributors since 1931. Headquartered in the Netherlands, the company has locations in 25 countries and employs about 8,300 people. More about Trouw Nutrition
Trace waste must be disposed of according to state and federal guidelines. Typically, this type of chemotherapy waste is disposed of in a yellow medical waste container. The container must be compliant with medical waste regulations.
Bulk chemotherapy waste is any waste generated from chemotherapy that is not RCRA empty. This category of waste includes any item or material that has been used in the process of chemotherapy treatment and contains more than 3% of the agent. Items that are considered bulk chemotherapy waste are:
Bulk chemotherapy waste is considered hazardous waste and therefore must be disposed of according to the laws associated with this type of medical waste. Collection should be done in the appropriate container which is usually black and clearly labeled hazardous waste. All bulk chemotherapy waste should be picked-up and transported by a licensed medical waste disposal company.
Both trace and bulk chemotherapy waste have the ability to cause illness or death if accidental contact occurs. They can also cause damage to the environment and water supply if improperly disposed of and generators of this type of waste can face violations and fines for improper disposal.
All Points Medical Waste provides full service medical waste disposal, including trace and bulk chemotherapy waste. We serve Florida medical and healthcare facilities from Broward County to Okeechobee County. Give us a call today or complete the form on this page to get a quick quote.
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